ISpring WGB32BM 3-Stage Whole House Water Filtration System (w/ 20″ x 4.5″ Sediment, Carbon, and Iron & Manganese Reducing Filters) w/ 3/4” Push-Fit Braided Stainless Steel Hose Connectors. Previously installed/used, moderate use, out of box, no original packaging. Peak Flow Rate: 15 GPM. Minimum Working Pressure: 25 psi. Maximum Working Pressure: 80 psi. Operating Temperature: 40-100 ºF. PH Range: 6 – 11. 1 inch NPT inlet / outlet. 21 x 8 x 28 inches; 55 Pounds. We are a liquidation business. We are not experts in any particular category of items we sell, we are simply an intermediary that connects buyers with heavily discounted product. We list items with information provided to us by our sources and our consignees and it is always our intention to provide the most accurate data we can. We cannot help resolve a problem unless we know there is one.