McMaster 6795K17 316 Stainless Steel Cam-and-Groove Hose Coupling, 90 Degree Socket with 316 Stainless Steel Levers, 2 Coupling Size x 2 NPT Female

Made of metal, these couplings have better durability than plastic cam-and-groove couplings. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to-large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug's body and force the plug against the gasket to form a tight seal. The 90° elbow shape allows hose connections to make tight turns. Couplings are compatible with Andrews, Dixon, Ever-Tite, and PT cam-and-groove couplings. 316 stainless steel has excellent corrosion resistance.