For use with Waterguard filter housings. Normal usage indicates that cartridges should be changed about every six months. 

• Filters will last up to a year with minimal usage
• Filter life, in gallons: 2,000
• Max Flow: 1.5gpm (5") - 2.5gpm (10")
• Filters out Sediment/Dirt, Cloudy Water and Chlorine/Odor, and improves taste
• 1-year warranty