Under $500 buys the simplest chillers: small units that cool a tub or barrel with a modest compressor or a thermoelectric plate. They suit a single person and a modest temperature drop from room-temperature water, and many lack filtration, heating or app control.
Check the cooling rate and the lowest temperature the unit can reach in your climate, because a small chiller in a warm garage may fall short of true cold-plunge temperatures. Confirm the tub size it is rated for, whether a pump and hoses are included, and whether you must add a separate filter or ozone unit to keep the water clean.
Prices were last checked November 11, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Best Cold Plunge Chillers Under $500: Up to 1/2 HP
- Healcryo 0.5 HP Ozone Chiller#1 of 11Full review
A low-cost way to keep a small one-person tub cold with ozone included.
Amazon $496.95$496.951/2 HP4,000 Btu/h38 °F - Fox Plunge 1/2HP Cold Plunge Chiller#2 of 11Full review
A cheap, quiet 1/2 HP kit for a large inflatable tub where 41 F is cold enough.
Amazon $449.95$449.951/2 HP-41 °F - Fox Plunge 1/3HP Ice Bath Chiller#3 of 11Full review
An entry-level chiller for a small one-person tub, best kept indoors.
Amazon $269.95$269.951/3 HP-42 °F - AQOVOR 1/3 HP Cold Plunge Chiller#4 of 11Full review
A budget chiller for a small tub indoors, where 42 F is cold enough.
Amazon $279.99$279.991/3 HP-42 °F - Poafamx 1/2 HP Ice Bath Chiller#5 of 11Full review
A plain 1/2 HP kit for tubs up to about 130 gallons.
Amazon $499.99$499.991/2 HP-40 °F - BAOSHISHAN 1/3 HP Cold Plunge Chiller#6 of 11Full review
A plain indoor chiller for a ported one-person tub.
Amazon $266.80$266.801/3 HP-42 °F - EONIX 1/2 HP Ice Bath Chiller#7 of 11Full review
A cheap 1/2 HP kit for a large inflatable tub where 42 F is enough.
Amazon $449.99$449.991/2 HP-42 °F - EONIX 1/3 HP Ice Bath Chiller#8 of 11Full review
A basic small chiller for a one-person tub of up to about 80 gallons.
Amazon $369.99$369.991/3 HP-42 °F - The Pod Company Standard Chiller#9 of 11Full review
A simple small chiller for owners of Ice Pod tubs who want cold water without ice.
Amazon $455.20$455.201/3 HP-41 °F - AS ColdPlunge 1/3 HP Chiller#10 of 11Full review
A compact all-in-one small chiller for a one-person tub.
Amazon $399$3991/3 HP-42 °F - PlungeFit WiFi 1/3 HP Chiller#11 of 11Full review
A cheap app-controlled chiller for a small tub where 42 F is cold enough.
Amazon $419$4191/3 HP-42 °F
