Ozone is one of the most efficient ways to sanitize the water in your cold plunge. The JED 303 is the best model I have found for chest freezer cold plunges because they have a built-in pump and do not require plumbing or venturi injectors like hot tub ozone generators. The JED 303 ozone generator can also be used to sanitize water in a stand-alone ice bath or chiller-based cold plunge where you do not want to use a venturi or bypass assembly.

General Specifications

• Corona discharge (CD) ozone generator
• Designed for water sanitation in tubs and tanks up to 400 gallons (1,500 liters)
• Weather resistant case
• 10′ (3 meters) of blue 1/4″ (6 mm) inner diameter tubing
• Weighted air stone
• Check valve
• Built-in air pump, which can pump ozone into a tub or tank to a depth of 4 feet (1.2 meters) with no plumbing or venturi required