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The Watts WQCHFC11 Kwik Change Hollow Fiber Cartridge is designed to fit Watts Kwik Change Reverse Osmosis Systems and Watts Kwik Change Drinking Water Units. The WQCHFC11 is color coded purple so you know exactly which old cartridge it replaces. The Watts WQCHFC11 is a 0.1-0.3 micron Hollow Fiber filter for Ultrafiltration. The WQCHFC11 cartridge is 11-inch long and should be replaced every 6 months or 2,000 gallons. WQCHFC11 cartridges have double O-rings to prevent leakage. Cartridges connect directly to the unit by a simple 1/4 turn. These cartridges feature a patented valve which allows for cartridge replacement without shutting the water off--internal valves shut off flow when cartridges are removed. The WQCHFC11 can replace the WQCHFC10.

WATTS WATTS-WQCHFC11 Kwik Change Replacement Hollow Fiber Cartridge - B00571M9U6