CHECK VALVE 1/2" 1200P-1PSI-CP-BRASS Hotsy Pacific Sale! from $29.30 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Check Valves - Spring LoadedHolds pump prime without overloading pump suction. PSI: 1200 Max Temperature: 250°F Cracking Pressure PSI: 1 Machined-Brass Body Stainless Steel Springs Poppet Seal 1/2", F x F