Selected Filtration Material: Our dedicated R&D team works day and night to ensure our filters provide your family with the purest and safest water anywhere in the world. We adopt the coconut activated carbon block which ensures you get only the best when you choose our products.. Reduces chlorine to deliver clean and refreshing water. Cleaner, fresher, and better tasting water and ice for your family, have peace of mind with NSF certified filters that reduce contaminants. A filter you can trust: This filter we put our name to is fully certified by NSF, against NSF standards 401, 53, and 42. Simply replace your filter every 6 months, or after 300 gallons, and enjoy the clean water you and your family deserve.. Compatible Models: WS646A, WD-LT1000P, RWF4700A, RWF4700A-S, Genuine LT1000PCS, LT-1000PC, ADQ74793502, 469980, 46-9980, PF16, PF15, GF-1000P, CF16, FL-RF46, AQF-LT1000P, MB- LT1000P, BL003-S, RWF1053, CWMF002, ZWFL7-RF300, MR15, Air Filter: ADQ73214402, ADQ73214403,