[Fstbttms]

Anybody know the size of the knotmeter and depth sounder transducer thru-hulls on a mid-80s Catalina 30? Thanks.

 

[Fstbttms]

i just replaced mine last year. i installed a garmin 010-10194-01. i just tried to look it up but it doesn't give the size. i'm almost positive it is 1.5". i have a '78

Thanks!