NOTE: These filters only work with The Cold Stoic Classic, The Cold Stoic 2.0, and The Siberian.  They DO NOT work with the Cold Stoic 3.0, Aurelius or the Siberian Pro models.

Our filters generally last between 2 to 6 weeks for residential use. However, the lifespan can vary depending on local water quality and usage. To extend the life of your filter, avoid contamination from sweat, dirt, sunscreen, body oil, and other impurities.

• 6 RENU Therapy certified filters
• Pleated design increases surface area for better dirt-holding capacity and longer filter life.
• Double open end (DOE)
• Bacteria- and chemical-resistant