Aquatic Life Twist-In Reverse Osmosis Aquarium Water Filter Replacement Cartridge Pack, Includes 75 GPD Membrane, Sediment, Carbon Block and Deionization DI Filters for 3 and 4-Stage RO/DI System
Special Features
Twist-In 5 micron Sediment filter cartridge: recommend replacing every 6 months
Twist-In 5 micron Solid Carbon Block filter cartridge: recommend replacing every 6 months
Twist-In RO Membrane filter cartridge, 75 GPD: recommend replacing every 1-2 years
Twist-In color changing Deionization cartridge: replace when the resin color changes completely
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