About this item Product 1: Recommended use: Replacement fridge filters; Replace water and air filter every 6 months for best results Product 1: Genuine replacement part: Part made specifically to be compatible with Frigidaire refrigerators Product 1: Certifications: NSF Standard 42 certified to reduce chlorine, taste, and odor; 53 certified to reduce health related contaminants such as lead, volatile organic chemicals, and asbestos; 401 certified to reduce emerging chemical compounds Product 1: Compatibility: Designed for use with PureSource Ultra and Pure Air Ultra filtration systems Product 2: Certified by Frigidaire as a value replacement for Pure Source Ultra ULTRAWF and Pure Source WF3CB water filters Product 2: Certified by NSF and compliant with the NSF 42 standard Product 2: Carbon technology absorbs bad tastes and odors for better tasting drinking water and ice cubes Product 2: Fits specific Frigidaire refrigerators › See more product details