DEAD STOCK SALE!!! (480) NEW 1.5" PVC Spring Check Valves with female threads. Threaded ends comply with ANSI B21. PVC poppet loaded on a stainless steel spring rated at ½ lb pressure. Neoprene seal for tight fit. Valve rated up to 200 PSI at 73°F. *Not meant for use with compressed air. 60 boxes of 8. 450 lbs. Any offers?