FOOD GRADE PP-Made of 100% Melt-Blown Polypropylene. FOOD GRADE MATERIAL-Made of 100% high quality coconut carbon. STANDARD-Fits all standard 20″ sized big blue filter, size at 4.5″ diameter x 20 height. Function-Sediment cartridge is used to remove silt, sand, rust, dirt, and other undissolved particles, these can be used for residential and commercial applications. Function-Carbon block filter is used to remove Remove chlorine, taste & odors, very fine particulates. Life time:6-12months , these can be used for residential and commercial applications. GOOD PACKING-All Filters are individually wrapped & sealed and extend shelf life. FEED WATER PRESSURE: 40 – 100 PSI. TEMPERATE:40-110°F/5-45°C, PH:3.0 -11.0. MAX TDS :1000 PPM, TURBIDITY. What is dimension of a Geekpure Replacement Water Filter? It is 4.5″ODx 20″ height and standard. What is the function? PP spun filter, Remove sand, dirt, sediment. Carbon block filter, Remove chlorine, taste & odors, very fine particulates. If not Geekpure, the filters is available to other brands big blue filter? Please don’t worry. It compatible to most 20 inch standard sized big blue housing , includes Ispring, Express Water, Culligan and more brands. What is in the box? The Life Time of the Filter Cartridge Depends on Usage Amount and Feed Water Quality. It Is Normal for Some Black Carbon Fines to Appear in the Water When Emptying the First 3 Gallons of Water. The First 3 Gallons of Water Produced Should Be Emptied and Not Used. Push the Tubing All the Way in and Use Teflon Tape During Installation. Below is more options and matched filter housings. The item “6 Pack Big Blue PP Sediment and Carbon Block Replacement Water Filter 20 x 4.5″ is in sale since Wednesday, January 27, 2021. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “geekpurewater” and is located in Rowland Heights, California. This item can be shipped to United States.