Might not be the right place but It is as close as I could see. Does anyone have any idea what size Oring I need for the quick coupler on a Troy Built pressure washer? Last week I changed tips while washing my camper. I evidentley did not get it seated and it spit the nozzle out. I gathered it up and seated it good, but now it is a loose sloppy fit and leaks more water than comes out the nozzle. I took it off and it looks like it spit the Oring along with the nozzle. I found several sites that explain how to replace it but but can't find anyplace that gives a size. I would appreciate any help I can get