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This is for 4th stage Replacement RO membrane; replaced every 2 to 3 years, part no. 3150 Applicable Models: KOOLERMAX AR-122, AR-125, HK-120 TFC-150 High rejection TFC membrane we use genuine US MEMBRANE membrane filter, 150 gal/day, it removes 96% to 98% of all chemical, dissolved solids in tap water. (replace every 2 to 3 years).Our 150 GPD membrane fits all standard residential style membrane housings. Made in USA. |