2 Stage Whole House Water Filter System with 10-Inch Blue Housing-1Port. 2 Stage Whole House Water Filtration System with 5 Micron PP Sediment and Carbon Block Filter, 10 inch blue housing (1NPT brass inlet/outlet), plastic wrench and screws It is Installed at the main water supply and produce pure water for your entire home. Enjoy better water from every tap and every appliance in the whole house FUNCTION-PP Sediment is used to reduce silt, sand, rust, dirt, The PP filter display different color and tracks the life time as you use, It is time to replace a new one when it is dark yellow or brown. Carbon block filter is used to reduce chlorine, taste & odors Large capacity housing for high flow applications, Flow rate : 5-15 GPM (Depend on Feed Water Pressure) LIFE TIME:6-12 months or 100K gallons water. Note:this system will NOT reduce Total Dissolved Solids (TDS), but keeps healthy minerals in your water. If you are searching for a filter that reduce TDS, Please refer Reverse Osmosis systems.