The Gates 6C2AT-6RFJX Field Attachable Type T for G2 Hose (2 Wire) - Female JIC 37 Flare Swivel, 3/8" ID is made of zinc plated carbon steel and used for hydraulic hose applications. These couplings are one piece crimp couplings that are Field Attachable Type T for G2 Hose (2 Wire).