25 psi – 80 psi. Different layer reduces different sized contaminants targetly. The inner layer is 5 micron to capture small particles. The outer layer is 10 micron to hold more dirts. Reduces Sediments, dirts, sand, Large particles of rust and scale. Granular Activated Carbon Filter. Using high quality coconut shell activated carbon can reduce 99% of Chlorine, Taste and Odor, while removing organic matter and small amounts of chemicals from water. CTO Carbon Block Sediment Filter. The Innovated Sintering Technology Filter has an large capacity and strong contiminants absorption ability. This filter not only filtering Chlorine and color, but also filtering particles and sediment including rust and limescales. The fragile link parts of the system are made of lead-free brass, and the filters are independent and detachable from each other for easy modification, GOLDEN ICEPURE is committed to building a reliable system for users. If left untreated, impurities in well water will build up in your dishwasher or washing machine and become difficult to clean. Using the GOLDEN ICEPURE 3 Stage 20 Whole House Water Filtration System will extend the life and protection of wading equipment in the house. Turn off the water supply and press the red pressure relief button on the filter cap, then use the black filter wrench provided to open the blue filter housing and easily replace the filter cartridge. Turn off the water supply, open the faucet to drain excess water, measure the system and cut the pipes. (Please have a towel ready to wipe any remaining water in the pipes). This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “i-xtech” and is located in this country: US. This item can be shipped worldwide.