SIDE BY SIDE

Compare products.

See prices, running costs, specifications and trade-offs side by side. Choose two to four products of the same type.

Change products

Product 1Product 2Product 3 (optional)Product 4 (optional)

Ice tub

Sharper Image Ice Bath Portable Cold Plunge

Black foldable tub, sold at Target (no chiller)

$43.99US price, checked Oct 20, 2026

Foldable one-person ice tub sold at Target under the Sharper Image name, with no chiller

Check price at Target Full review →

Ice tub

Redwood Outdoors Alaskan Cold Plunge Tub

Stained, with lid and steps, no chiller (130 gallons)

$2,700US price, checked Oct 24, 2026

130-gallon hemlock ice tub with lid and steps, sold without a chiller

Check price at Redwood Outdoors Full review →

Criterion	Sharper Image Ice Bath Portable Cold Plunge	Redwood Outdoors Alaskan Cold Plunge Tub
US price	$43.99Checked Oct 20, 2026 · Price details in the review	$2,700Checked Oct 24, 2026 · Price details in the review
Three-year ownership estimate	$43.99 Incomplete known subtotal. Not included: installation, annual consumables.	$2,700 Incomplete known subtotal. Not included: installation, annual consumables.
Choose if	You want a low-cost way to try an ice bath at home and are fine adding your own ice and pump.	You want a wood-clad ice tub for a yard or beside a sauna and have a pad or deck for about 1,334 lb.
Main trade-off	You get no chiller, no named manufacturer and a one-year warranty with no stated terms, and an air pump isn't included.	Without a chiller, cold water depends on ice, and Redwood doesn't say how much ice that takes or how cold the water gets.
Key specifications	Capacity: 100 gallons. Water depth 1.45 ft Size and weight: Tub 31.5 x 29 in. Overall 5.31 x 28.35 x 13.28 in (folded size not confirmed). 7.28 lb Fit: One adult, up to 6.5 ft and 250 lb Cooling: No chiller or cooling system listed, so cool it with ice. No lowest temperature stated Construction: PVC frame, PVC and polyester liner, tri-layer insulated walls and eight supports Drainage: Bottom spigot with a hose Setup: Adult assembly required, no tools needed. Air pump required but not included	Capacity: Up to 130 gallons, one person Size and weight: 37 in diameter by 40.5 in tall (FAQ: about 31 in across, about 40 in tall). 250 lb empty, 1,334 lb with water Cooling: No chiller included. Cool it with ice. Redwood gives no lowest temperature for the tub Chiller connection: Three pre-plumbed 1/2 in MPT wall fittings on tubs from mid-2023 (two low for suction, one high for return), per the FAQ. The product page doesn't list them Insulation and lid: Reflective insulation between the liner and the wood, per the FAQ. Heat-treated hemlock lid included. No temperature-holding figure given Materials: Canadian heat-treated hemlock exterior and lid. Molded acrylic liner per the spec table, fiberglass per the FAQ Drain: Built-in drain with a 3/4 in garden hose connection Included: Tub, hemlock lid and movable entry steps Foundation: Level concrete pad at least 4 in thick with mesh, or a deck checked for the weight. Not on dirt or grass Water care: No filter or sanitizer built in. Change the water after each session with ice only, about every 7 days with bromine Freight: Wooden crate to the curb, appointment required. Shipping calculated at checkout
Exact variant	Black foldable tub, sold at Target (no chiller)	Stained, with lid and steps, no chiller (130 gallons)
Dimensions	Target describes the tub as 31.5 in by 29 in with a water depth of 1.45 ft. Overall dimensions are 5.31 in high, 28.35 in wide and 13.28 in deep, and Target doesn't say whether that's the folded size. The listing gives a 100-gallon capacity and a 7.28 lb weight, and says the tub fits one adult up to 6.5 ft or 250 lb. It doesn't say how 100 gallons relates to the 1.45 ft depth, so the amount of water at a normal fill is unknown.	Redwood's product page lists the tub at 37 in in diameter and 40.5 in tall. Its FAQ says about 31 in across and about 40 in tall, and neither page says which figure is the inside. It holds up to 130 gallons and seats one person. The tub weighs 250 lb empty and 1,334 lb with water, per the product page. The FAQ rounds the filled weight to about 1,350 lb. The movable steps are 23.25 in wide, 21.25 in long and 25 in tall. The tub ships in a wooden crate 3 ft 2 in wide, 3 ft 4 in long and 3 ft 4 in tall.
Installation	Target lists no electrical or plumbing need for the tub. It says adult assembly is required and no tools are needed, and the tub folds for storage. Its spec list shows an air pump as required but not included, and doesn't say whether the pump must be electric. A bottom spigot with a hose handles drainage. Target gives no setup time, no floor-load guidance and no outdoor-use rating.	Without a chiller, the tub needs no outlet or plumbing. Assembly takes three steps with the supplied parts. Screw the two handles onto the lid, take the steps out of the tub, and screw the drainpipe onto the bottom outlet. Redwood's manual asks for a strong, level foundation. That means a concrete pad at least 4 in thick with mesh, or a deck an architect or building engineer has checked for the weight. It advises against dirt or grass. The drain has a 3/4 in garden hose connection and works by gravity. The manual suggests a 1/4 HP submersible utility pump, around $60, to move the water farther. A freight truck delivers the crate to the curb by appointment, and someone has to be there to sign. The page's delivery estimate showed an order on Oct 23 shipping Nov 3, and Redwood calls delivery times estimates.
Materials	Target lists a PVC frame and a liner of PVC and polyester. It describes tri-layer insulated walls with eight supports for stability. Customer reviews and Target's review summary mention a lid, but the description and spec list don't say one is included. Target says the item is imported and doesn't name the maker.	The exterior and lid are Canadian heat-treated hemlock. The spec table lists a molded acrylic liner, while the FAQ calls it fiberglass. The FAQ says a reflective insulation layer sits between the liner and the wood. The stained model comes with a clear linseed-oil primer that Redwood says protects the wood for about 12 months. The FAQ then suggests a marine-grade sealer for the tub, the steps and both sides of the lid. The manual says to reapply stain and seal every 1 to 2 years.
Warranty	One year, listed as a limited warranty on Target's product page. Target says to call its Guest Services for a copy of the manufacturer's or supplier's warranty before you buy. The page doesn't say what the year covers, what's excluded or who handles claims.	One year from delivery, per Redwood's warranty policy for cold plunge tubs. It covers defects in materials and workmanship for the original buyer. Redwood chooses between replacement parts, a replacement tub or a full or partial refund. Labor, installation and removal aren't covered, and Redwood pays reasonable shipping only on returns it authorizes. Freight damage, cosmetic blemishes and poor water maintenance are excluded. The tub must not be operated, stored or left filled at or below 32°F unless it's winterized, and freeze damage isn't covered. Claims go by email with proof of purchase and photos or video. Redwood's chillers are also covered for 1 year.
Returns	30 days from the date of purchase, delivery or pickup, per Target's product page. You can return it to any Target store or to Target.com. The page points to Target's return policy, and fees and conditions aren't stated on the product page.	30 days from delivery, and Redwood must approve the return in writing first. Redwood decides whether to give a full refund, a partial refund or credit, less shipping and handling and other costs. The tub must come back disassembled, palletized and in its original wood crate. The policy doesn't say who pays return freight or name a restocking fee. An order with a cold plunge is held 7 days before processing. Canceling in that window is free, and after it the charge is 3.5% of the order. Damage has to be noted on the delivery paperwork and emailed to Redwood within 7 days.
Unresolved questions	Whether Sharper Image still sells the tub on its own site, since a store search found none Who makes the tub and who handles warranty claims How much water it holds at a normal fill Whether the 5.31 x 28.35 x 13.28 in overall size is the folded size Whether a lid and an air pump come in the box How long the water stays cold on a fill of ice How to clean the tub and how often to change the water Whether it can stay outdoors in sun or freezing weather What the one-year warranty covers and excludes Return conditions and fees in Target's full return policy	How much ice a fill needs and how long the water stays cold The lowest water temperature the tub reaches with ice The insulation's rating and how well the lid holds the cold Which diameter is the inside, since the page says 37 in and the FAQ says about 31 in Whether the liner is molded acrylic or fiberglass Freight cost, which Redwood calculates at checkout Return freight cost and whether any restocking fee applies The price and model of a chiller that fits this tub, since the page lists none Whether the bromine and water balancing kits are back in stock Whether the tub carries any certification, since the pages name none

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.