RC Marine deck fill cap/hardware = where to find parts?

[Konrad Jarausch]

I managed to lose a deck-fill cap for a 'RC Marine made in New Zealand' deck fill fitting ... and can't seem to find a replacement or detailed specs = hoping another C&C owner knows something about these fittings, and where i might find a replacement cap (rather than replacing the entire fitting -- my attempts at Google search (R C Marine has disappeared?) and several purchase(s) of similarly dimensioned parts has not yet yielded a match -- thanks in advance for the advice!

 

[Peggie Hall HeadMistress]

I lost the cap to my own pumpout fitting that was so old that it had a different thread count than today's. Fortunately deckfills aren't expensive. I ended up just replacing the whole fitting...and an extra cap. It's a bit of a PITA job, but not difficult. ust make sure you get the same size...Although the nominal size is 1.5", that only applies to size of the hose that goes onto it. Standard size for threaded opening is 1.25"

--Peggie