Official Replacement filter for SURVIVOR FILTER(TM) Home - Max, Stage 1 Fluoride Filter1.5 year replacement Fluoride Filter for the Max 2-Stage Home Filter. Certified by the WQA (Water Quality Association) to show 95% removal of fluoride in municipal tap water.Specifications:Product SKU#: H200-S1FCapacity: up to 5,000 gallons (18, 928 liters)Usage Life Cycle: up to 1.5 yearsWater Temperature: 40AdegF-100AdegF (6AdegC-37AdegC)Flow Rate: up to 0.5 GPM (3.7 LPM)Water Pressure: 206-861 KPA (30-125 PSI)Size: 12.5x2.5Weight: 0.57kgComponents:Max, Stage 1 Replacement Fluoride Filter