{"product_id":"plungebox-core-portable-cold-tub","title":"PlungeBox CORE: Portable Cold Tub","description":"\u003cdiv class=\"product-pdp\"\u003e\n\n  \u003c!-- ══════════════════════════════════════\n       §1 · WHY THE PLUNGEBOX CORE\n  ══════════════════════════════════════ --\u003e\n  \u003csection class=\"section section--cream\" aria-labelledby=\"why-heading\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cdiv class=\"overview__grid\"\u003e\n        \u003cdiv class=\"overview__body\"\u003e\n          \u003cp class=\"section__eyebrow\"\u003ePortable Cold Plunge Tub\u003c\/p\u003e\n          \u003ch2 class=\"section__title\" id=\"why-heading\"\u003eThe Cold Plunge That Goes Anywhere. Starting at Just Add Ice.\u003c\/h2\u003e\n          \u003cdiv\u003e\n            \u003cp\u003eThe \u003cstrong\u003ePlungeBox CORE\u003c\/strong\u003e is a one-person portable cold plunge tub built around a straightforward promise: set it up anywhere, fill it with water and ice, and you're plunging within minutes. No installation. No plumber. No permanent footprint. Whether that's a backyard, a patio, a garage, or a living room, the CORE adapts to wherever you want your cold therapy practice to live.\u003c\/p\u003e\n            \u003cp\u003eUnder the CORE's portable exterior is the same double insulation system PlungeBox calls their \u003cstrong\u003eSub-Zero Technology\u003c\/strong\u003e — the same engineering that makes the more expensive tubs hold cold longer. Cold lasts further into your session per ice addition, which means less ice consumed and more consistent temperature from the moment you step in to the moment you step out. The UV-resistant materials mean it holds up to outdoor use without material degradation over time — this isn't a product that survives one season.\u003c\/p\u003e\n            \u003cp\u003eThe CORE is designed for users up to \u003cstrong\u003e6'9\" and 250 lbs\u003c\/strong\u003e — a range that covers most adults who want a comfortable, spacious immersion rather than a cramped fit. It's the starting point in the PlungeBox lineup: everything you need for a serious cold plunge practice, at the entry price.\u003c\/p\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"stats__grid\"\u003e\n            \u003cdiv class=\"stat-card\"\u003e\n              \u003cspan class=\"stat-card__value\"\u003e6'9\"\u003c\/span\u003e\n              \u003cspan class=\"stat-card__label\"\u003eMax Height\u003c\/span\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"stat-card\"\u003e\n              \u003cspan class=\"stat-card__value\"\u003e250 lb\u003c\/span\u003e\n              \u003cspan class=\"stat-card__label\"\u003eMax Weight\u003c\/span\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"stat-card\"\u003e\n              \u003cspan class=\"stat-card__value\"\u003eUV+\u003c\/span\u003e\n              \u003cspan class=\"stat-card__label\"\u003eRated Materials\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"overview__image\"\u003e\n          \u003cimg src=\"https:\/\/saunabox.com\/cdn\/shop\/files\/SaunaBoxR02_04Transparent_Shadow.png?v=1762197938\" alt=\"PlungeBox CORE portable cold plunge tub — front view with shadow\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ══════════════════════════════════════\n       §3 · TECHNOLOGY\n  ══════════════════════════════════════ --\u003e\n  \u003csection class=\"section section--dark\" aria-labelledby=\"tech-heading\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eSub-Zero Technology\u003c\/p\u003e\n      \u003ch2 class=\"section__title\" id=\"tech-heading\"\u003eFour Engineering Priorities Behind the PlungeBox CORE\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eThe CORE is built on the same technology platform as the rest of the PlungeBox lineup — insulation, durability, and portability engineered for consistent performance at an accessible entry price.\u003c\/p\u003e\n      \u003cdiv class=\"tech__grid\"\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e🧱\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003eDouble Insulation System\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003ePlungeBox's Sub-Zero Technology isn't a single thick wall — it's two discrete insulating layers working in sequence to resist heat transfer from every direction around the water. The result: cold lasts longer per ice addition, temperature drop is slower through a session, and you use less ice each time. For regular plungers, that's real reduction in ice cost and real improvement in session quality.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003eDouble-Layer · Sub-Zero Technology\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e☀️\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003eUV-Resistant Materials\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003eNon-UV-rated materials break down in direct sunlight within a season or two — walls become brittle, colors fade, and insulation performance drops. The CORE is built with UV-resistant materials throughout, designed for permanent or semi-permanent outdoor setup on decks, patios, and grass without material degradation. Set it up outside and leave it out — the materials handle the elements.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003eUV Resistant · Indoor + Outdoor\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e🎒\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003ePortable by Design\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003ePortable isn't just a marketing word for the CORE — it's a practical reality. The tub deflates, packs down, and can be stored when not in use or moved to different locations as your setup evolves. No permanent installation means no commitment to a single location, no structural modifications, and no professional setup required. Add water and ice and you're ready within minutes.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003eNo Installation · Instant Setup\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e📐\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003eBuilt for Real Users\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003eThe CORE's dimensions accommodate users up to 6'9\" tall and 250 lbs — a range that covers the overwhelming majority of adults. High-quality materials are used throughout for long-term durability under frequent repeated use. This isn't a novelty item or a seasonal purchase — it's a wellness tool built to be part of a consistent practice over the long term.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003eFits to 6'9\" \/ 250 lbs · High-Quality Build\u003c\/span\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ══════════════════════════════════════\n       §4 · HEALTH BENEFITS\n  ══════════════════════════════════════ --\u003e\n  \u003csection class=\"section\" aria-labelledby=\"benefits-heading\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eWhy Cold Therapy\u003c\/p\u003e\n      \u003ch2 class=\"section__title\" id=\"benefits-heading\"\u003eWhat a Consistent Cold Plunge Practice Delivers\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eCold water immersion triggers a cascade of physiological responses that accumulate with regular practice. The CORE removes the barrier to entry so those benefits are accessible without a major investment.\u003c\/p\u003e\n      \u003cdiv class=\"benefits__grid\"\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e💪\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eMuscle Recovery\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e🔥\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eReduce Inflammation\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e❤️\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eBoost Circulation\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e⚡\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eEnergy \u0026amp; Mood\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e🧠\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eMental Resilience\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e🌙\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eSleep Performance\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e🎯\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eReduce Soreness\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\" aria-hidden=\"true\"\u003e🔬\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eBoost Metabolism\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ══════════════════════════════════════\n       §5 · FEATURE DEEP-DIVES\n  ══════════════════════════════════════ --\u003e\n  \u003csection class=\"section section--cream\" aria-labelledby=\"features-heading\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eFeature Deep-Dives\u003c\/p\u003e\n      \u003ch2 class=\"section__title\" id=\"features-heading\"\u003eBuilt to Plunge. Built to Last.\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eEvery design decision in the PlungeBox CORE is oriented around the same goal: make cold plunging accessible, repeatable, and worth doing every day.\u003c\/p\u003e\n      \u003cdiv class=\"product-dives\"\u003e\n\n        \u003c!-- Block 1: Sub-Zero Insulation --\u003e\n        \u003carticle class=\"product-dive\"\u003e\n          \u003cdiv class=\"product-dive__image\"\u003e\n            \u003cimg src=\"https:\/\/saunabox.com\/cdn\/shop\/files\/SaunaBoxR02_03Transparent_Shadow.png?v=1708818227\" alt=\"PlungeBox CORE showing double insulation wall construction for Sub-Zero cold retention\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"product-dive__badge\"\u003eSub-Zero Technology\u003c\/p\u003e\n            \u003ch3 class=\"product-dive__title\"\u003eYour Ice Goes Twice as Far.\u003c\/h3\u003e\n            \u003cp class=\"product-dive__body\"\u003eA thin-walled inflatable tub loses cold quickly — your session starts at target temperature and gradually warms over the first 10–15 minutes as the water absorbs heat from the surrounding air. The CORE's double insulation system changes that dynamic. Two insulating layers work in sequence around the water mass, dramatically slowing heat transfer from every direction. Your cold holds longer per ice addition, stays consistent through the session, and requires less top-up between uses.\u003c\/p\u003e\n            \u003cul class=\"product-dive__list\"\u003e\n              \u003cli\u003eDouble-layer insulation in all wall panels — not a single thick wall\u003c\/li\u003e\n              \u003cli\u003eCold lasts longer per ice addition than standard single-wall tubs\u003c\/li\u003e\n              \u003cli\u003eConsistent temperature throughout sessions rather than warming mid-plunge\u003c\/li\u003e\n              \u003cli\u003eLess ice required overall — meaningful savings over time for frequent plungers\u003c\/li\u003e\n            \u003c\/ul\u003e\n            \u003cdiv class=\"feature-badges\"\u003e\n              \u003cspan class=\"feature-badge\"\u003eSub-Zero Technology\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eDouble Insulation\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eLess Ice\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/article\u003e\n\n        \u003c!-- Block 2: UV + Outdoor --\u003e\n        \u003carticle class=\"product-dive product-dive--reverse\"\u003e\n          \u003cdiv class=\"product-dive__image\"\u003e\n            \u003cimg src=\"https:\/\/saunabox.com\/cdn\/shop\/files\/A37A9262_25ed9d76-81eb-4857-80bb-ad28b33877c1.jpg?v=1708818227\" alt=\"PlungeBox CORE set up outdoors in backyard patio environment showing UV-resistant outdoor use\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"product-dive__badge\"\u003eUV-Resistant + Outdoor Ready\u003c\/p\u003e\n            \u003ch3 class=\"product-dive__title\"\u003eLeave It Outside. Year-Round.\u003c\/h3\u003e\n            \u003cp class=\"product-dive__body\"\u003eMost inflatable tubs aren't rated for continuous outdoor exposure. Direct sunlight degrades non-UV-rated materials in predictable ways — seam strength weakens, walls become brittle, surface materials crack or fade after a season outdoors. The CORE's UV-resistant construction prevents this degradation, making it suitable for permanent outdoor placement on decks, patios, grass, and garage floors through seasonal changes. Set it up where you want your cold plunge practice to live — not where you're willing to tolerate a fragile piece of equipment.\u003c\/p\u003e\n            \u003cul class=\"product-dive__list\"\u003e\n              \u003cli\u003eUV-resistant materials throughout — no outdoor degradation over time\u003c\/li\u003e\n              \u003cli\u003eSuitable for permanent outdoor setup: decks, patios, grass, garages\u003c\/li\u003e\n              \u003cli\u003eHandles seasonal temperature changes without material stress\u003c\/li\u003e\n              \u003cli\u003eHigh-quality construction built for frequent use over the long term\u003c\/li\u003e\n            \u003c\/ul\u003e\n            \u003cdiv class=\"feature-badges\"\u003e\n              \u003cspan class=\"feature-badge\"\u003eUV Resistant\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eIndoor + Outdoor\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eYear-Round Use\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/article\u003e\n\n        \u003c!-- Block 3: Portability + Setup --\u003e\n        \u003carticle class=\"product-dive\"\u003e\n          \u003cdiv class=\"product-dive__image\"\u003e\n            \u003cimg src=\"https:\/\/saunabox.com\/cdn\/shop\/files\/A37A9514_8a770815-0a1a-4139-803a-f4aff36175c2.jpg?v=1708818227\" alt=\"PlungeBox CORE portable cold plunge tub in use — showing easy fill-and-plunge setup\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"product-dive__badge\"\u003eInstant Setup\u003c\/p\u003e\n            \u003ch3 class=\"product-dive__title\"\u003eAdd Water. Add Ice. Start Plunging.\u003c\/h3\u003e\n            \u003cp class=\"product-dive__body\"\u003eThe CORE requires no tools, no plumber, no power source, and no installation of any kind. Set it up on any flat surface, fill with water, add ice, and you're ready for your first session within minutes. That simplicity is deliberate — the most common reason people don't use their cold plunge gear is because the friction of setup is too high. The CORE keeps that friction as low as it can go. When a session takes more time to prepare than it does to complete, people stop doing sessions. The CORE is designed to not be that product.\u003c\/p\u003e\n            \u003cul class=\"product-dive__list\"\u003e\n              \u003cli\u003eNo installation — no tools, plumber, or permanent footprint required\u003c\/li\u003e\n              \u003cli\u003eWorks indoors and outdoors — deploy wherever makes sense for your routine\u003c\/li\u003e\n              \u003cli\u003eDeflates and packs down for storage or transport when not in use\u003c\/li\u003e\n              \u003cli\u003eReady within minutes — fill, ice, plunge\u003c\/li\u003e\n            \u003c\/ul\u003e\n            \u003cdiv class=\"feature-badges\"\u003e\n              \u003cspan class=\"feature-badge\"\u003eNo Installation\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eMinutes to Ready\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003ePortable\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/article\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ══════════════════════════════════════\n       §9 · LINEUP COMPARISON\n       (No certs data — replaced with\n        PlungeBox lineup comparison card set)\n  ══════════════════════════════════════ --\u003e\n  \u003csection class=\"section\" aria-labelledby=\"lineup-heading\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eThe PlungeBox Lineup\u003c\/p\u003e\n      \u003ch2 class=\"section__title\" id=\"lineup-heading\"\u003eWhich PlungeBox Is Right for You?\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eThe CORE is the entry point. Here's how it fits in the full PlungeBox lineup to help you choose the right tub for your practice and space.\u003c\/p\u003e\n      \u003cdiv class=\"lineup__grid\"\u003e\n        \u003cdiv class=\"lineup-card lineup-card--active\"\u003e\n          \u003cspan class=\"lineup-card__badge lineup-card__badge--active\"\u003eYou are here\u003c\/span\u003e\n          \u003cdiv class=\"lineup-card__name\"\u003ePlungeBox CORE\u003c\/div\u003e\n          \u003cdiv class=\"lineup-card__spec\"\u003ePortable · Sub-Zero double insulation · UV-resistant · Fits to 6'9\" \/ 250 lbs · Add water + ice · Entry price point\u003c\/div\u003e\n          \u003cspan class=\"lineup-card__arrow\"\u003e✓ This Product\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"lineup-card\"\u003e\n          \u003cspan class=\"lineup-card__badge\"\u003eStep up\u003c\/span\u003e\n          \u003cdiv class=\"lineup-card__name\"\u003ePlungeBox PRO\u003c\/div\u003e\n          \u003cdiv class=\"lineup-card__spec\"\u003eHexagonal shape · Double insulation · UV-resistant · 32\" diameter · 300L · 7 lbs · Fits to 6'9\" \/ 250 lbs · Chiller compatible\u003c\/div\u003e\n          \u003ca href=\"https:\/\/www.recoveryforathletes.com\/products\/plungebox-pro-enhanced-thermal-insulation-tub\" class=\"lineup-card__arrow\"\u003e→ View PlungeBox PRO\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"lineup-card\"\u003e\n          \u003cspan class=\"lineup-card__badge\"\u003eMaximum size\u003c\/span\u003e\n          \u003cdiv class=\"lineup-card__name\"\u003ePlungeBox XL Lay-Flat\u003c\/div\u003e\n          \u003cdiv class=\"lineup-card__spec\"\u003eLay-flat oval design · 48.4\" long · 500L · Fits to 6'6\" \/ 350 lbs · Extra thick insulation · Chiller compatible\u003c\/div\u003e\n          \u003ca href=\"https:\/\/www.recoveryforathletes.com\/products\/plungebox-xl-lay-flat-cold-tub\" class=\"lineup-card__arrow\"\u003e→ View PlungeBox XL\u003c\/a\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ══════════════════════════════════════\n       §12 · FAQ\n  ══════════════════════════════════════ --\u003e\n  \u003csection class=\"section section--cream\" aria-labelledby=\"faq-heading\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eCommon Questions\u003c\/p\u003e\n      \u003ch2 class=\"section__title\" id=\"faq-heading\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eAnswers to what buyers most commonly ask about the PlungeBox CORE.\u003c\/p\u003e\n      \u003cdiv class=\"faq__list\" role=\"list\"\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            What is the PlungeBox CORE and how is it different from other cold plunge tubs?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe PlungeBox CORE is a one-person portable cold plunge tub featuring PlungeBox's Sub-Zero Technology double insulation system and UV-resistant materials. Unlike generic inflatable tubs, the CORE's double insulation maintains cold temperatures significantly longer per ice addition, and its UV-rated construction handles permanent outdoor placement without material degradation. It's designed to be set up anywhere — indoors or outdoors — without installation, and accommodates users up to 6'9\" and 250 lbs.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            How does the double insulation work and how much ice does it save?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe Sub-Zero Technology uses two discrete insulating layers in the tub walls rather than a single thick wall. The dual-layer approach resists heat transfer from multiple angles simultaneously, slowing the rate at which ambient heat enters the water. In practical terms, your water stays at target temperature longer into each session, and you'll need less ice to refresh temperature between sessions. Exact savings depend on ambient temperature and session frequency, but regular plungers consistently report meaningful ice reduction versus standard single-wall tubs.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            Can I leave it outside year-round?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eYes — the PlungeBox CORE is built with UV-resistant materials specifically for outdoor use. Direct sunlight won't degrade the wall panels or reduce insulation performance over time the way it would with non-UV-rated materials. The CORE handles permanent or semi-permanent outdoor placement on decks, patios, and grass through seasonal changes. For extended periods without use, deflating and storing indoors extends the product's life, but the materials are rated for outdoor exposure without that precaution.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            What are the dimensions and how much water does it hold?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eFull dimensions and water capacity for the PlungeBox CORE are available on the product listing — check the current specifications panel or contact PlungeBox directly for confirmed figures. The tub is designed for one person up to 6'9\" (206cm) tall and 250 lbs (113 kg).\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            How do I set it up?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eSetup requires no tools or installation. Place the tub on any flat, stable surface — indoors or outdoors. Inflate the walls until firm and rigid, then fill with cold water to your desired depth. Add ice and wait 10–15 minutes for temperature to equalize. That's it — you're ready to plunge.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            How do I clean and maintain it?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eChange the water every two weeks based on use frequency. Between changes, wipe down the interior with a natural cleaning spray, rinse, and dry. No chemical additives are required for basic maintenance. If using the tub outdoors, a cover between sessions reduces debris accumulation and helps retain temperature.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            How does the CORE compare to the PlungeBox PRO?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe PlungeBox PRO features a hexagonal six-panel design (Sub-Zero Technology applied via flat wall geometry), confirmed dimensions of 32\" diameter × 29\" tall with 300L capacity, 7 lbs empty weight, and explicit chiller compatibility. The CORE shares the double insulation system and UV-resistant materials but is the entry-level product in the lineup. If chiller compatibility or the hex insulation geometry is important to your setup, the PRO is the right choice. If you want the core performance at the entry price, the CORE delivers the fundamentals.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            Is the PlungeBox CORE HSA\/FSA eligible?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe PlungeBox CORE may qualify for HSA\/FSA purchase through Truemed for customers with qualifying medical conditions. Cold water immersion therapy has documented applications in sports medicine, post-surgical recovery, chronic pain management, and inflammation. Eligible customers typically save 25–35% using pre-tax health dollars. Eligibility is confirmed through Truemed's qualification process at checkout — check the product listing for the current Truemed widget.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\" role=\"listitem\"\u003e\n          \u003cbutton\u003e\n            Can the CORE be used indoors?\n            \u003cspan class=\"faq-icon\" aria-hidden=\"true\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eYes — the PlungeBox CORE is designed for both indoor and outdoor use. Indoor placement works well in a bathroom, utility room, basement, or any space with drainage accessible nearby. Since the tub requires no permanent installation, it can be set up and broken down as needed without any impact on the space. For regular indoor use, having the drainage hose routed to a floor drain or bathtub makes water management straightforward.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e\u003c!-- \/.pb-core --\u003e\n\n\u003cscript\u003e\n  document.querySelectorAll('.product-pdp .faq-item button').forEach(btn =\u003e {\n    btn.addEventListener(\"click\", () =\u003e {\n      const item = btn.closest('.faq-item');\n      const answer = item.querySelector('.faq-answer');\n      item.classList.toggle('active');\n      answer.classList.toggle('open');\n    });\n  });\n\u003c\/script\u003e","brand":"SAUNABOX","offers":[{"title":"Default Title","offer_id":48775300153595,"sku":"COLDTUB-V1","price":59.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/SaunaBoxR02_04Transparent_Shadow.png?v=1776953679","url":"https:\/\/www.recoveryforathletes.com\/products\/plungebox-core-portable-cold-tub","provider":"Recovery For Athletes","version":"1.0","type":"link"}