About This Recommended Replacement Schedule – Replace reverse osmosis water filter pre and post filters every 12 months; replace RO membrane every 24 months for optimal water quality and system longevity. For use in Microline TFC-400 Systems – Designed for seamless fit and function with TFC-400 reverse osmosis systems; ensures peak filtration performance and water quality. Complete Annual Kit for 4-Stage System – Includes ro filter S7011 5-micron sediment filter, S7028 carbon sediment pre-filter, S1229RS 50 GPD RO membrane, and S7206W-JG inline GAC post-filter. Includes High-Efficiency 50 GPD Membrane – Thin Film Composite (TFC) membrane rated at 50 gallons per day for effective reduction of dissolved solids and contaminants. Removes Sediment, Chlorine, Taste & Odor – Multi-stage filtration reduces fine particles, chlorine, and unpleasant taste or odor from drinking water for clean, fresh results. Overview Material : Carbon Block, GAC Granular Activated Carbon, Polypropylene (PP) Product Dimensions : 6"D x 12"W x 4"H Product Benefits : Reduces Chloramine, Reduces Chlorine, Reduces PFOS, Reduces Sediment, Reduces VOCs, Removes Lead Brand : ESP Water Products EU Spare Part Availability Duration : 2 Years