About this itemGeekpure Whole House 6 GPM Water Filter,No Secondary Pollution.No chemical added to the water supply.No change in taste, odor, pH or conductivity nor the general chemistry of the water100-140 v / 50-60 Hz. Flow rate: 6 GPMEquip with Stainless steel 304 chamber with 3/4 inch MNPT inlet / outlet, 1 x electronic ballast with audible and visual alarm,3 x filter ,3 x quartz sleeve,3 x fixed clampLast 9000 hours min,Works night and day, 24/7, consistently keeps water pure. Warranty: 1 yearIt 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 Specification： FEED WATER PRESSURE: 40 – 100 PSI TEMPERATE:40-110°F/5-45°C PH:3.0 -11.0 MAX TDS :300 PPM RESIDUAL CHLORINE<0.1mg/L TURBIDITY <1.0 NTU MAX SDI <4.0 HARDNESS <5 GPG IRON <0.1 MANGANSESE <0.05 Shelf life: 3 Years Warranty: 1 year limited warranty