CHECK VALVE - SPRING (BR) 1" Hotsy Pacific Sale! from $33.90 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. Brass Check Valves - Spring-LoadedHolds pump prime without overloading pump suction. PSI: 150 Max Temperature: 250°F Machine-Cast Brass Bodies FPT x FPT Mount Horizontal or Vertical 1"