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Chilled plunge tub

Plunge All-In

Gen 2, Cold Only (no heater add-on)

$7,990US price, checked Oct 13, 2026

Plug-in 105-gallon chilled tub that Plunge says reaches 37°F

Check price at Plunge Full review →

Chilled plunge tub

Sun Home Cold Plunge Pro

Cold Plunge Pro (base model, SKU PLUNGEPROS): 150-gallon hard-shell tub with a 316 stainless basin, not the Pro Apex or Pro Titan

$14,599US price, checked Oct 13, 2026

Stainless hard-shell tub with a 1 HP chiller that sets as low as 28°F

Check price at Sun Home Full review →

Criterion	Plunge All-In	Sun Home Cold Plunge Pro
US price	$7,990Checked Oct 13, 2026 · Price details in the review	$14,599Checked Oct 13, 2026 · Price details in the review
Three-year ownership estimate	$7,990 Incomplete known subtotal. Not included: installation, annual consumables, energy use.	$15,873.01 Incomplete known subtotal. Not included: installation, other annual costs, energy use.
Choose if	You want an all-in-one chilled tub for home use, indoors or out, and you have a dedicated 120 V, 15 A circuit and a floor that can take 1,150 lb.	You want very cold plunges in a stainless hard-shell tub without plumbing, and you can give it a dedicated 15 A GFCI circuit.
Main trade-off	The price depends on a time-limited sale, the base warranty is one year, and running costs are unknown because the product page gives no power draw.	At $14,599, you get one year of coverage, and labor and shipping are covered only for the first 90 days.
Key specifications	Chiller temperature: Down to 37°F. Plunge gives a cooling rate of 10–12 degrees per hour Chiller: 0.75 HP. Plunge says it holds 37°F in 120°F ambient air Water capacity: 105 gallons Electrical: Dedicated 120 V, 15 A circuit and a 7 ft cord with GFCI. Power draw not stated Sanitation: Onboard ozone. Plunge says the full volume is filtered about every 15 minutes Weight: 238 lb empty, 1,150 lb full Heating: None on Cold Only. The Add Heater version ($8,490 in the sale, $10,490 Comp. Value) goes up to 104°F, and Plunge gives a heating rate of 4–5 degrees per hour Controls: The free Plunge app works over Wi-Fi to set the temperature, track sessions and send filter and water-treatment reminders Use: Residential use only, indoors or outdoors. Plunge sells a separate commercial model	Temperature range: 28–70°F set range, about 8 hours to cool to 38°F. Sun Home says it can make floating ice Chiller: 1 HP, Secop SCE21CNLX compressor with 390 g of R290 refrigerant, 55–60 dB Electrical: Rated 120 V, 12 A with a NEMA 5-15P plug on a dedicated 15 A GFCI circuit. Wattage not stated Size and capacity: 150 gallons. 78.7 × 33.5 × 34.2 in outside, 47.4 × 28.7 × 27.5 in inside Weight: 400 lb dry. Filled weight not stated Water care: Ozone, UV and dual-pump circulation through a 10 × 2.5 in, 20-micron filter Controls: Touchscreen panel, plus the Sun Home app over Wi-Fi for temperature, lights, the Polar Jet and scheduling
Exact variant	Gen 2, Cold Only (no heater add-on)	Cold Plunge Pro (base model, SKU PLUNGEPROS): 150-gallon hard-shell tub with a 316 stainless basin, not the Pro Apex or Pro Titan
Dimensions	Plunge lists the tub at 76.75 L × 31.5 W × 28.75 H in. It weighs 238 lb empty and 1,150 lb filled. Plunge asks for at least 16 in of clearance on the fan side for ventilation. It also wants 12 in at the front for drain access and ventilation, and 4 in on the left side as you face the LED display. Plunge doesn't state interior dimensions.	The assembled tub measures 78.7 × 33.5 × 34.2 in (length, width, height). Inside, the spec sheet gives 47.4 × 28.7 in, with 27.5 in of depth. It holds 150 gallons and weighs 400 lb dry. Sun Home doesn't give a filled weight, but 150 gallons of water alone weighs about 1,250 lb. It ships in an 84 × 37 × 42 in crate that weighs 636 lb. The spec card rates it for one person.
Installation	It needs a dedicated 120 V, 15 A circuit. A 7 ft power cord with a GFCI on the end is built in. There's no plumbing: Plunge says all you need to do is fill it with water and plug it in. Standard delivery is curbside, to the driveway or curb. Most customers qualify for free in-home delivery in Plunge's core "In Area" zones. It puts the tub on the first level, unpacks it and removes the packaging. Setup and connection to power aren't included. In-stock units ship within 8 business days in the lower 48 states. Hawaii, Alaska and US territories take an additional 2 to 3 weeks.	There's no plumbing: you fill it with a hose. It's rated 120 V and 12 A. The 8 ft cord can't be removed and plugs into a standard NEMA 5-15 outlet. That outlet must sit on a dedicated 15 A GFCI circuit, and Sun Home says no hardwiring is needed. The spec sheet asks for 3 ft of clearance at the vent end and 1 ft on each side. The head end can sit against a wall, and the whole setup needs about 9.5 × 5 ft. It's rated for indoor and outdoor use on a surface that can carry the filled tub. Sun Home says not to run it outdoors below freezing or leave it out through freezing weather. The first cool-down takes several hours, and the lid shortens it.
Materials	Plunge says it's built for indoor and outdoor use, and an insulated cover is included. Plunge doesn't say what the tub or shell is made of.	The basin is 316-grade stainless steel inside a hard shell with injected insulation. Sun Home calls it marine-grade construction. An insulated lid, a headrest and stair mats are included. It also has a touchscreen panel and interior lights with a color remote. Sun Home doesn't name the shell material or the insulation type on the pages reviewed.
Warranty	The standard warranty is 1 year. During the Fall Plunge Sale, Plunge adds a complimentary 2-year extended warranty, which it values at $299. The product page doesn't give coverage details or exclusions.	Sun Home gives the Cold Plunge Pro a 1-year residential limited warranty against manufacturing defects. It covers the original buyer only. It starts at purchase or delivery, whichever is later, as long as delivery is within six months of purchase. Labor and shipping are covered for the first 90 days from delivery. After that, you pay both, and Sun Home chooses whether to repair or replace. Wear and tear, abuse, improper installation, electrical problems and use outside the published guidelines aren't covered. The product page shows a "1+ Year Warranty" badge and a site-wide "Limited Lifetime Warranty On Most Models" banner. That lifetime coverage is for cabinetry and heaters on some saunas, and the warranty page lists the Pro at one year. Extended warranties are sold separately, but no price is given. Commercial buyers get separate terms at the point of sale.
Returns	Plunge offers a 30-day guarantee. It says that if you're not 100% satisfied within the first 30 days, you get a hassle-free return policy, though "some conditions may apply". The product page doesn't state return fees or pickup costs.	You can return it within 30 days of delivery only if it's unused and still in its original, unopened packaging. Sun Home won't take back an uncrated, assembled or used cold plunge. It keeps a 25% restocking fee and charges shipping both ways, even on a free-shipping order. Returns need approval through Sun Home's returns portal first. Refunds are issued within 21 days of receiving the return, after inspection. Every cancellation costs 3% per product, even within 24 hours of ordering. After 24 hours, a 25% restocking fee is added, and you may pay roundtrip shipping. On a $14,599 tub, the restocking fee alone is $3,649.75.
Unresolved questions	Average power draw and annual electricity use Noise level (Plunge calls it ultra-quiet but gives no figure) Tub, shell and insulation materials Interior dimensions Return fees and pickup costs Which conditions sit behind "some conditions may apply" on returns Warranty coverage details and exclusions What the extended warranty adds Standalone price and replacement interval for filters and water-care chemicals Whether it carries an electrical safety listing such as ETL or UL When the Fall Plunge Sale ends	Average power draw and daily run time Filled weight Water-change interval Whether delivery includes placement or is curbside Shell and insulation materials Whether the tub or chiller carries an electrical safety listing such as ETL, UL or CSA Whether the app carries a fee Price of the extended warranty Commercial warranty terms

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.