GT, SPX, etc. Fuel Filter O Ring size ??????

[Musicmanjer]

Has anyone bothered to measure out what size o-ring Seadoo uses for the spin off fuel filter near the gas tank? I'm sure its metric, but thought I'd check with the forum before I took a micrometer to it. Since o-rings are pennies each, thought I could save a few bucks and share 'em with some PWC friends if I bought in bulk. $$$$ is tight for everyone these days, and I have 4 Seadoo's of varying years, and all need o-rings.

Thanks a million!!!
Jerry