seacocks again

redhead78 · #1 (**permalink**) 01-18-2010

hey guys thanks for the info on the fiberglass blocks. I am confused as to the threads on the parts. I was going to use a groco tri flange 3/4'. I think it comes wf nps threads top and bottom. Valve should be nps also? The groco bronze thru hull is nps also correct? I'm confused...Red

Maine Sail · #2 (**permalink**) 01-18-2010

Red,

Try this..

Seacock & Thru-Hull Primer (LINK)

redhead78 · #3 (**permalink**) 01-18-2010

Ol mainesail, that helps, That is the groco tri flange I am going to use. It has a nps on the bottom side and the thru hull is male nps, apparently the top of the tri flange[male end], I can install an npt ball valve.Then the 3/4" hose barb is also npt. I like the idea of the tri flange, in case of valve failure. ....Red