• Pack of 2 filters
• 20" x 2.5" Granular Activated Carbon Filters
• When you initially turn on a tap after installing a new cartridge you can notice black or gray suspended particles, carbon fines. While they are totally safe it can be unpleasant for you to have them in your water. Another reason to flush a GAC whole house water filter is turbidity that is just an air carbon tends to release when contacting with water for the first time. To get rid from both issues just pass several gallons of water before putting a new cartridge into service.
• Filter life 3-4 months depending on water quality.
• Compatible with iSpring FG25X4, Premier Water Systems 4pcsGAc, Premier 15pcswf, Hydronix UDF-20, Geekpure GAC-20, Crystal Quest CQERC04024, Geekpure 122-20, Pentek 150560, 3G-STANDARD-34-PR20, 150166, 153013, 158129, 158204, 150009, 150564, Hydronix HX-HF5-20BLBK34PR, HX-HF5-20BLBK34