The Swift Green Filter SGF-W41 is a comparable refrigerator water filter to the Whirlpool 8171414 filter and is for side-by-side and top mount models with interior filter access. This filter utilizes carbon media to reduce cysts, asbestos, chlorine taste and odor, lead, mercury, and more while leaving beneficial fluoride. When compared to conventional carbon-based filters, Swift Green Filter products are environmentally friendly. Conventional carbon filters are produced by a burning process called open pit charring which releases pollution and greenhouse gas emissions into the air. Green Filter components are produced with a new technology that carbonizes dried coconut shells in an enclosed self-sustaining system while capturing and converting the emissions into useful thermal energy. The SGF-W41 is NSF 42 certified. Order today!