The 1 Qt/946 mL Polar Pure Cold Plunge Cleaner is a premium 3-in-1 liquid treatment designed for use in cold plunges, ice baths, and recovery tubs. Combining the functions of a sanitizer, clarifier, and softener, it keeps water clean, clear, and gentle without harsh chemicals or the need for draining. Its non-toxic, biodegradable enzyme formula makes it safe for skin and compatible with all system types, from stainless steel tanks to inflatable models. With just one capful per week, Polar Pure delivers a low-maintenance, cost-effective way to maintain pristine water in cold therapy setups.