Deck Pump Out Adapter

[Subs]

Hi Everyone.

My marina doesn't seem to have the right size of adapter for the pump out fitting on my 2018 C28. I'm going to order a Nozall. Does anyone know what the thread size is? There are (2) 1 1/4". Either 16tpi or 11.5 tpi.

Thanks!

 

[gswearin]

Hi Subs,
I posted this a while back without much success. I measured the threads at 11.5 but could never get the adapter on tight. Probably user error, but the nylon threads on the adapter kept going off track.

 

[S. Todd]

Pump out Adapter Model number 150644 from West Marine fit both our 2015 R25SC and our 2021 R29S

 

[Subs]

Thanks!

It looks like my best bet is to get the 1 1/4" x 11.5 tpi. I'll post the results here so someone could find this with a future search.

 

[Subs]

Commenting back in to thank everyone for the help and to verify (bought one today) that the threads for the 2018 c28 pump out are 1 1/4 x 11tpi.