Official Replacement Filters for SURVIVOR FILTER(TM) Home - MaxA full set of replacement filters for the Max 2-Stage Home Filter . Certified by the WQA (Water Quality Association) to NSF/ANSI Standards 42 for chlorine removal, taste and odor and to NSF/ANSI 372 for lead-free compliance and 95% removal of fluoride in municipal tap water.Specifications:Product SKU: H200-S1F, H200-S2FCapacity:Stage 1 Filter: up to 5,000 gallons (18,928 liters)Stage 2 Filter: up to 8,000 gallons (30, 283 liters)Usage Life Cycle:Stage 1 Filter: up to 1.5 yearsStage 2 Filter: up to 2 yearsFlow Rate: up to 0.5 GPM (1.8 LPM)Water Pressure: 206-861 KPA (30-125 PSI)Size: 12.5x2.5 (per filter)Weight: 1.42kg (gross)Components:Max, Stage 1 Replacement Fluoride FilterMax, Stage 2 Replacement All Tap Filter