NOS Taprite Check Valve Regulator Outlet Fittings, 1/4" Flare x 1/4" NPT 5436A
Direction of flow is from the NPT threads toward the flare end. Inlet threads: 1/4" NPT (National Pipe Thread). Outlet threads: 1/4" SAE Flare (7/16-20 Threads, 45 Degree Flare).