Flare Nut Adapter. Made of acetal copolymer material which is chemically resistant to petroleum products, coolants, and most common chemicals. Allows user to put a Loc-Line connector on both ends. Allows users to replace flared copper tube fittings and copper tube with Loc-Line fittings and hose. Loc-Line won't fatigue like copper. A popular fitting. for air applications in the printing industry. 3/8" Flare nuts fit to 5/8 - 18 threads. Gray color.

Flare Nut Adapter. Made of acetal copolymer material which is chemically resistant to petroleum products, coolants, and most common chemicals. Allows user to put a Loc-Line connector on both ends. Allows users to replace flared copper tube fittings and copper tube with Loc-Line fittings and hose. Loc-Line won't fatigue like copper. A popular fitting. for air applications in the printing industry. 3/8" Flare nuts fit to 5/8 - 18 threads. Gray color.