EarthSmart W-4 refrigerator replacement water filter is certified against NSF/ANSI 42, 53, 372, 401, P473 & CSA B483.1 to reduce Lead, Cyst, 70+ VOC's (Volatile Organic Chemicals), Mercury, Asbestos, Pharmaceuticals, BPA, PFOA & PFOS as well as Chlorine taste and odor to ensure high quality and performance. Fits the following Whirlpool & Kitchenaid Filters:046-9002, 0469002, 4609002000, 469002, 9002, 9002P, FILTER 8, NL200, NLC200, WFI-NL200, WFI-NLC200, WFI-NLCS200, EDR8D1.