Thru Hull size

Aug 29, 2016
131
Catalina 2004 310 (Hull #250) BC
Can someone please let me know what the size(s) of the thru hulls are? Can’t seem to find it in the manual.
Thanks
 
Last edited:
May 24, 2004
7,129
CC 30 South Florida
Any Chandlery will sell you a pack of assorted sizes. The fact that they are tapered make most interchangeable.
 
Nov 16, 2012
1,037
Catalina 310, 2000, #31 31 Santa Cruz
Can someone please let me know what the size(s) of the thru hulls are? Can’t seem to find it in the manual.
Thanks
All 6 on our 2000 C310 are 3/4”. Forespar Series 93, Marelon. Macerator, Two Sinks, Head intake, Shower/Reefer Drain, and Engine intake. But there’s no guarantee that you’ve got the same size, or they’re in the same locations, or you don’t have more or less...
 

KZW

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May 17, 2014
831
Catalina 310 #307 Bluewater Bay, FL
Mine are 3/4: Head sink, A/C, galley sink, raw water intake for head. Macerator and raw water intake are larger, at least 1:
 
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Nov 16, 2012
1,037
Catalina 310, 2000, #31 31 Santa Cruz
Mine are 3/4: Head sink, A/C, galley sink, raw water intake for head. Macerator and raw water intake are larger, at least 1:
So they did change sizes along the way. Not surprising.