Cold water immersion therapy has a number of benefits, including boosting cardiovascular circulation, reducing inflammation, fortifying the immune system, and improving mental health. The Cold Stoic tank from Renu Therapy allows owners to experience these benefits at home. Designed in California, the unit has clean lines with a natural wood deck and a weatherproof mechanic's bay. Inside the bay are a magnetic-drive water pump that circulates up to 20 gallons of water per minute, a titanium heat exchanger that maintains the water at temperatures between 39 and 55 degrees, and an ultraviolet ozone water sanitizer and filter system that reduces maintenance and the need for chemicals. It's appropriate for indoor or outdoor use and made by hand in the U.S.