Check Valve, Spring, NPT End, 400 psi, 225 deg F, Air, Non-Potable Water, Bronze Body, Buna-S Seal

The No. 300 check valve is made of a one-piece cast brass body. Designed to operate in any position, a sensitive spring has been added to close the poppet automatically. The rubber poppet is fully-formed around a solid steel insert to provide greater strength in commercial applications. Each valve is tested twice for casting integrity and backflow prevention. All valves are 100% American-Made and built to last.