2.5 Inch Type D Camlock Fitting – Brass Brass cam and groove coupler &adapter made according to standard A-A-59326(original standard Mil-C-27487). Camlock couplings make it easy and easy to extend / disconnect the hose from the tank, tank and equipment. In storage tank, marine refueling system, pump, oil tank and other occasions, brass cam lock is a good choice, it has good corrosion resistance and long service life, convenient operation, and it can save time, tools and manpower.