In this laundry room, the pipe that comes out of the wall to drain the washing machine requires that what comes out of the appliance should simply be inserted into it, crossing your fingers after each wash in the hope that the water pressure doesn't cause it to come out and flood the floor.
To connect the washing machine hose without risk, I designed this flange to hold together a hose holder equipped with an OR with the hose coming out of the wall. Everything is held together with a few screws and works perfectly!

The print includes 5 parts: the upper is a single piece that must be inserted into the hose holder, two semicircles to fill any remaining thickness, and two lower identical parts to be fixed on the tube once positioned.

To assemble everything you will need:

two M6x30 screws with washer

two M4x25 screws

two M6 nuts

two M4 nuts

(the screws can be even longer than described)