Compatible with C-CS-FF & More – Replaces CS51, CS-51, WF297, RWF1100, WSB-1, WSQ-1, AWF-640565, EFF-6026A, and similar models for easy, reliable fit. Coconut Carbon Filtration – High-quality carbon block reduces chlorine, sediment, rust, and impurities for clean, great-tasting water. NSF Certified – Tested to NSF/ANSI 42, 53, 372 & 401 for lead, VOCs, pharmaceuticals, PFOA/PFOS, chlorine taste, and odor reduction. Eco-Friendly Design – Made with sustainable coconut shell carbon to cut waste and support greener living. 2000-Gallon Capacity – Filters up to 2000 gallons or 6 months of water, providing a long-lasting, economical solution. Quick DIY Installation – No tools required. Just twist, lock, and enjoy fresh water in minutes. Keeps Beneficial Minerals – Filters harmful elements while preserving healthy minerals for naturally refreshing water. Swift Green Filters SGF-BO52 Rx Compatible for EVOLFLTR10, 640565, 1257074, 5586605, 55866-06, AP3961137 Refrigerator water Filter most compatible best in class and technology Internationally Certified .Swift Green Filters will deliver fresh, clean, and great tasting water and ice cubes. Designed with technology using recycled coconut shells that create an internal carbon filter with up to 50% more filtering pores. The result is safe and clean drinking water that has eliminated contaminants and impurities that may have been present. Disclaimer: This product is not manufactured or authorized by OEM ( Original equipment manufacturer) nor is OEM ( Original equipment manufacturer) responsible for the quality or suitability of this replacement part.