iSpring F21KU200 Upgraded 200 GPD 2-Year Replacement Filter Pack for RCC2AK-UV 7-Stage Reverse Osmosis System with Alkaline Mineral & UV, 21-Piece

The F21KU200 upgraded 2-year replacement filter pack provides a complete set of 21 replacement components for the iSpring RCC2AK-UV 200 GPD 7-stage reverse osmosis system with alkaline mineral and UV filtration. 4x 5-Micron 10" Sediment Filters (1st Stage, #FP15): Reduces dirt, rust, sand, and other particles. Replace approximately every 6 months. 4x 5-Micron 10" Granular Activated Carbon (GAC) Filters (2nd Stage, #FG15): Absorbs chlorine, odors, and other impurities that contribute to bad tastes and odors. Replace every 6-12 months. 4x 5-Micron 10" CTO Carbon Block Filters (3rd Stage, #FC15): Further reduces any remaining chlorine, tastes, and odors. Replace every 6-12 months. 1x 0.0001-Micron Reverse Osmosis Membrane (4th Stage, #MC2): The heart of the reverse osmosis system. Produces up to 200 gallons of drinking water per day. Replace approximately every 2–3 years. 2x Post Carbon Filters (5th Stage, #FT15): Polishes the water before it is delivered to the faucet. Replace approximately every 12 months. 4x Alkaline Mineral Filters (6th Stage, #FA15): Restores beneficial minerals and improves taste. Replace every 6-12 months. 2x Ultraviolet Light Bulbs (7th Stage, #UVB11): Provides UV sterilization for added protection. Replace approximately every 12 months.