not perfect, but works
Mine was a little oversized, so I wrapped 2-3 layers of electrical tape on the port on my machine and now it is snug. This looks as if it came off of someone's 3d printer, but layer lines are thin, and appears to have a full fill, so it seems quite sturdy. I would purchase again, and would not hesitate to recommend this to anyone. It does make attaching a hose to the back of the machine much easier.
Rating: 4 stars