HIGH EFFICIENT- Geekpure Whole House 12 GPM U-V 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 water. POWERFUL & RELIABLE-55W Whole House 12 GPM U-V Water Filtration Unit.100-140 v / 50-60 Hz.Flow rate: 12GPM. COMPLETE WATER SYSTEM-Equip with Stainless steel 304 chamber with 1.0 inch MNPT inlet / outlet, 1pc electronic ballast with audible and visual alarm,3 pcs UV bulb ,3 pcs quartz sleeve,3 pcs fixed clamp. LONG LASTING-Last 9000 hours min,Works night and day, 24/7, consistently keeps water safe. RESPONSABLE MANUFACTURER-BPA-free, food grade materials,ISO9001:2008 certificated Manufacturer ,also Member of Water Quality Association (WQA). Specification: FEED WATER PRESSURE: 40 – 80 PSI TEMPERATE:40-110°F/5-45°C PH:3.0 -11.0 MAX TDS :500 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: 1year limited warranty More valuable information: ✪What is dimension of installed Geekpure U-V Water Filter? please leave space 38”x4”x4” for the unit. ✪Where can I buy replace bulb ,quartz sleeve and ballast? Please search in ebay store. ✪What is in the box? There is 1pc stainless steel 304 vessel,3pcs UV bulb ,3pcs quartz sleeve,3pcs fixed clamp ,1pc ballast and user manual in the box. ✪BPA free? Yes, BPA free. Note: 1.It Is Recommended to Wait Until the Entire System Is Pressurized and Re-Check for Any Leaks Before Leaving Installation Site. 2.The First 2 Gallons of Water Produced Should Not Be Used.