A-C211019-AI Dust Cap, 1/2", OrangeOne New Aftermarket Replacement Dust Cap, 1 2", Orange Hydraulic Quick Coupler This 1 2" orange hydraulic coupler dust cap protects the connecting surfaces of hydraulic quick couplers from dirt, dust, and debris when disconnected. Color coded orange for easy circuit identification, it fits standard 1 2" body agricultural style hydraulic quick couplings used on tractors, implements, and a wide range of farm and construction equipment. Keeping couplers