Shower adaptor for Costway washing machine

This adaptor fits onto the water inputs on the mini Costway washing machine. The threaded end is designed to screw into a the hose for a shower head. When I want to use the Costway washer, I unscrew the shower head from its hose, screw in this adaptor, then fit the non-threaded end of the adaptor onto one of the inputs of the Costway washer. The non-threaded end comes out a little tight, so some 80 grit sandpaper may be needed to get it to fit. I kept it this way to help ensure a tight fit so th