Overview This Refrigerator Water Filter Is Used In Side-By-Side And Top Mount Refrigerators With Filter Access Inside The Refrigerator. Simply Turn The Filter 1/4 Turn To Remove And Replace. This Nsf Certified Filter Reduces Chlorine Taste And Odor, Particulates (Class I), Lead, And Mercury. Replace Every 6 Months Ensures Clean, Safe Drinking Water. Replaces 8171787, 2204326, 2206039, & 2213384.