Eaton Weatherhead C5315X8 Carbon Steel SAE 37-Degree (JIC) Flare-Twin Fitting, Adapter, 1/2" Straight Thread O-Ring Boss x 1/2" JIC Male (Pack of 4) Adapts 1/2" NPTF male fitting with O-ring to 1/2" JIC 37-degree male flare Carbon steel for durability and resistance to rupture under high pressure Zinc-plated for resistance to corrosion 3,000 psi maximum working pressure Meets SAE J514 standards for quality assurance