Thru-Hull Fitting for Switchable Mufflers
 

Anyone know where to get the thru-hull part of this fitting? I pm'ed this person (Alwhite00) but he hasn't been active since 2024.

https://cimg7.ibsrv.net/gimg/www.off...e1092d149.jpeg

might give these guys a call
they make many different set ups
yours looks like an after thought of sorts to comply with some rules
https://corsamarine.com/collections/all

I run my quick fitting inside the transom and the just "T" them out the exhaust ring through either one of the 4 screw holes or drill another hole in the ring for the hose to go through. Gives it a cleaner look.
https://cimg0.ibsrv.net/gimg/www.off...301a5ccc70.jpg