The WU201 Microfiltration system features a state-of-the-art Hollow Fiber Technology 0.1 micron membrane, only second to Reverse Osmosis membranes. It uses standard home water pressure to push water through the membrane, which rejects the suspended particles and materials of high molecular weight, leaving you with only crystal clear clean water and dissolved minerals. The same technology is used to produce clean water in medical facilities and LifeStraw personal filters. The trapped impurities will be flushed out via the DIRT outlet to greatly extend the UF membrane lifespan up to 3 years. Mount the stainless steel housing near the Point of Water Entry (avoid freezing & heat), horizontally or vertically. Install a 3/4 inch shutoff valve with proper length of drain pipe onto the 3/4 inch DIRT outlet. Connect the 3/4 inch inlet to the water source pipe. Connect the 3/4 inch outlet to the water pipe into the house. Upon first use, open both the CLEAN and DIRT outlets, and flush the system for 10 minutes. Frequent flushes will greatly extend the filter life and maintain high water quality. 5-10 minutes per week is recommended. The UF membrane should never be left dry to avoid permanent damage. Ports: 3/4 inch NPT male. Working temperature: 45 F – 120 F. Water pressure: 35 psi – 90 psi. Filtration Level: 0.1 micron. GPD or 12 GPM. Lifespan: 3 years (flushed weekly). PSI reduction from input to output: 10 PSI. The item “2 Stage Whole House Microfiltration System 0.1 micron” is in sale since Wednesday, May 9, 2018. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “venustreasureisland” and is located in Alpharetta, Georgia. This item can be shipped to United States.