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Cold water systems
as well as most standard pH testing equipment requiring acidic reference calibration
💧 Pro Tip: KDF filters perform best in warm water
Designed for Everyday Convenience
or when TDS readings increase significantly
Watts (WQC4RO11) 11'' Elements 4 Filter Quick Change RO Unit Replacement Filter Annual Bundle Sensafe (481108) Total Hardness Test Strips 30 Packets Cold water systemsThis annual replacement bundle provides a complete set of prefilter and postfilter cartridges for the Watts WQC4RO11 11 inch Quick Change reverse osmosis system. The kit includes two sediment prefilters, two carbon prefilters, and one carbon postfilterenough media to maintain optimal filtration performance for a full year of typical residential use. WHAT'S IN THE BOX Complete Annual Filter Set Sediment Prefilters Qty. 2 WQCSC11 11" cartridges Carbon
US$ 70.00
US$ 4400.00
US$ 6375.00
