RWFFR Viking Refrigerator Water Filter Cartridge - VIKING-RWFFR Built to fit refrigerator styles including freestanding bottom mount, French door bottom mount or side-by-sides, the RWFFR Viking water filter cartridge will help significantly reduce impurities throughout its lifespan. NSF certified, this filter has been shown to significantly reduce sediment, lead, chlorine taste and odor and more. Ensure you serve only the cleanest tasting water from your fridge dispenser by ordering and installing the RWFFR Viking refrigerator water filter cartridge today.