
Plunge
Plunge All-In
Best for All-in-one cold and contrast therapy with minimal upkeep
- Minimum temperature
- 37 °F
- Chiller
- 1.0 HP
- Capacity
- 1 person

The Plunge Air puts Plunge's chiller-and-ozone ecosystem into a 28-pound inflatable tub that sets up in about 15 minutes on a standard 110V outlet. It is the most portable way into the Plunge app ecosystem, but the trade-off is real: the tub itself carries only a 90-day warranty next to the chiller's one year, and the base Standard Chiller cools a leisurely 4-6 degrees per hour.
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The Air is Plunge's answer to the inflatable-tub category: a 61 by 32 by 28-inch UV-resistant, insulated tub that weighs 28 pounds dry, holds about 105 gallons, and inflates in roughly 15 minutes with the included pump. The base $3,990 configuration pairs it with the Standard Chiller — 1/2 HP, running on a 110V outlet with a dedicated 15-amp circuit recommended — which Plunge's own comparison table rates for max cooling to 37 degrees F at 4-6 degrees per hour. A Pro Chiller Gen 2 upgrade ($5,490 cold-only) doubles the cooling rate to 8-10 degrees per hour, and an add-on heater brings any configuration up 4-5 degrees per hour for contrast work. Water care runs through a 20-micron filter plus ozone sanitation, supplemented by Plunge's chemical treatment kit, and temperature control and session tracking happen in the Plunge app.
The fine print is where the Air shows its budget positioning within the Plunge lineup. The chiller carries a one-year warranty but the inflatable tub itself is covered for just 90 days, and Plunge notes the warranty is activated — and kept active — by keeping the unit connected to Wi-Fi and the mobile app. Noise levels and energy consumption are not published, so quietness claims can't be verified from the official page. For someone who wants a genuine chiller (rather than an ice-fed tub) in a package that can move house or travel, the Air is the lightest path there; buyers who never plan to move it may find rigid tubs at similar prices with longer tub coverage.
Installation
Inflates in about 15 minutes with the included pump; plug into a standard 110V outlet; no plumbing required
Electrical
110-120V standard outlet; dedicated 15A circuit recommended
Running cost
Fully insulated tub and lid reduce chiller run time; exact energy consumption not published
Warranty
1-year warranty on the chiller; 90-day warranty on the tub. Activated and kept active via Wi-Fi/app connection.
Maintenance
20-micron filter changes plus water-treatment chemicals (chlorine shock, pH balancers); ozone sanitation assists between changes
See this product side by side with its closest rivals.
The manufacturer documentation, independent reviews and retailer listings this review draws on, with the date each was last checked.

Plunge
Best for All-in-one cold and contrast therapy with minimal upkeep

Renu Therapy
Best for Design-led buyers who want a long warranty

Plunge
Best for Buyers who want a commercial-grade separate chiller