This Kit contains replacement filters for the Hydro Logic smallBoy Dechlorinator and Sediment Filter Included in this kit: Choice between (x3) smallBoy Standard Green Coconut Carbon Filter (x3) smallBoy Upgraded KDF/CAT Carbon Filter (x3) smallBoy ChloraShield Carbon Filter (x3) smallBoy Sediment Filter smallBoy Green Coconut Carbon Filter Rated at 1 GPM (gallons per minutes) 10 micron nominal filtration No release of carbon fines Reduced rinse time due to carbon fines Greater dirt load capacity and flow efficiencies Industry-leading performance smallBoy: Replace after 3,000 gallons Stealth-RO: Replace after 1,250 gallons smallBoy KDF/Catalytic Carbon Filter Reduces iron, sulfur, chlorine, and heavy metals Rated at 1 GPM Twice the life of the Green Coconut Filter Great for well water Stealth-RO: Replace the after 2,000 gallons smallBoy: Replace the after 6,000 gallons smallBoy ChloraShield Carbon Filter 100% Chloramine Removal 1 micron rating Rated at 1 GPM Low pressure drop combined with exceptionally high dirt holding capacity Great for city water Stealth-RO: replace after 1,500 Gallons smallBoy: replace after 3,000 Gallons smallBoy Pleated Sediment Filter Reduces sediment, dirt, oils, and suspended solids Replace after 3,000 gallons or when clogged