Eaton Weatherhead C5015X10X8 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Adapter, 1/2" JIC Male x 5/8" JIC Female Reduces 5/8" JIC 37-degree flare female to 1/2" JIC 37-degree flare male Carbon steel for durability and resistance to rupture under high pressure For use with LP and natural gas, refrigeration, and hydraulic applications