Plastic Fuel vent cover

[afitzray]

Has anyone seen any of the fuel vent covers made of starboard for sale anywhere. I though Cecil marine had them at one point but I'm not seeing them now. I'm not having issues with water getting in, but mine is cracked and I'd rather just replace this thing than upgrade the whole vent fitting and have to fill in screw holes.
Attaches with three screws and looks like this:

Thanks!