Silver Camlock (Fill Cap) Cam and Groove Hose Fittings, Cam Lock Fittings, Male Adapter x Male NPT Thread Cam Lock Fittings, Camlock Coupling 3 inch. 
 
Size : 3 Inch
Material : Silver
Connector Type : Adapter Coupling
Thread size : 3 inch
Exterior finish : Silver
Thread Type : NPT