1 Micron Sediment Water Filter Cartridge 2 Pack Replacement Set Industry Standard 10-inch 1 Micron Sediment Filter - Used for effectively removing most sediments, cysts, chlorine, and fluorides This is a filter for a standard Reverse Osmosis Water Filtration Unit or any type of Water Filtration Unit with a 10 inch housing Product Lifetime: Replace two or three times a year - depending on your water quality This filter is wrapped and sealed and meets NSF (National Science Foundation) Standards and Regulations Dimensions: 10 inches x 2.5 inches (24.4 cm x 6.35 cm) Industry Standard 10 inch 1 Micron Sediment Filter - Used for effectively removing most sediments, bacteria, cysts, chlorine, fluorides