3/8" F Vertical Threaded Check Valve

Specifically designed for use on vertical tank mounted compressors. Withstands temperatures up to 500° F. Valve opens at 5 PSI, holds back pressure up to 450 PSI. Positive-seating Teflon disc, stainless steel spring, body with provision for unloading device. For air compressors water, gas, and oil lines.