These flat face couplers are for the hose end of your attachment and will couple with OEM couplers. These are also great for replacing the OEM couplers on skid steers with 1/2" hoses.
“I had to replace one of my couplers and ordered one pair of couplers. These are the same ones that came on my implement to begin with. The original coupler got dust in the workings and it it wouldn't clamp securely that was my fault for not keeping the dust covers on when not connected!”