Big Blue 10-inch x 4.5-inch - 20 Micron Sediment Water Filter - Used for effectively removing most sediments from water Product Lifetime - 10,000 gallons - replace two or three times a year - depending on your water quality This filter is wrapped and sealed. Dimensions: 10 inches x 4.5 inches (24.4 cm x 11.43 cm) WELL-FIT FOLLOWING HOUSINGS: Pentek 150237, 150469, 153029 #10, BIG-CLEAR-LX-10 and A48249, Aqua Filter Plus 150237-INSTKIT, BLUONICS BLBB20GAC, BLBBC10 and BLBB10x2, iSpring HB18B, OMNIFilter BF7-S-05 and BF7-S-S06, American Plumber W10-PR, Watts W10FFPH1CBPR, SimPure RSWHB001Z_S8, AB-WH10BBN, Hydronix HX-HF45-10CLBK10 and HF45-10BLBK15, Geekpure BB-10T and BB-10B, EcoPure EPWO4, Culligan HD-950A, Aquaboon AB-WH10BB-1S10BB5M Big Blue Melt-blown Polypropylene Sediment Filter (6 pack) The Big Blue Sediment Filter is often the first filter installed in the Whole House Water Filter circuit. It is often the first point of contact between your water supply and your home and is used as a pre-filtration unit before the water continues to reverse osmosis and activated carbon filters. It catches unwanted particles, including sand, dirt, silt, rust, and other fine particles as they attempt to enter your house??s water system. These particles and pollutants come from water sources, old and dirty pipes, as well as contaminants that are used to treat the water. The Big Blue filters are made of fine-melted polypropylene that are blown and spun into cylinder-like form. Removal of these particles allows filters, such as Carbon Block or GAC (Granular Activated Carbon) filters, as well as household water appliances like boilers, refrigerators, ice-makers, and many more, to perform better for longer periods of time. The Big Blue water filter has wider dimensions than standard water filters, allowing it to process more water in less time for your house. SPECIFICATIONS Big Blue 10-inch 20 Micron Sediment Water Filter - Used for effectively removing most sediments from water This is a filter for pre-filtration of water and fits all 10 inch Big Blue Water Filter housings Product Lifetime - 10,000 gallons - 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 4.5 inches (24.4 cm x 11.43 cm) (Industry standard size for most in-house water filters) 6-pack of 20 Micron Big Blue Sediment Water Filters