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Groco Bronze Thru-Hull Fittings are threaded with NPS (straight) male pipe thread, and are for use with Groco Seacocks or with any product with straight female pipe thread.
Groco Bronze Thru-Hull Fittings are the best choice for below-the-waterline use. They are supplied complete with a bronze locknut or they may be threaded directly into a compatible seacock.
September 21, 2021
Fitted to sailing canoe I just completed, built from a CLC kit. Otherwise auto bilge pump discharge would have had to go over deck. This way plumbing's all inside save for the tapered bronze escutcheon this fixture incorporated on the port top strake. Very elegant, very purposeful!
April 24, 2018
Items were as expected, great price on items and super fast shipping. Laurie Hallaway provided outstanding customer service. Thank you!
April 28, 2015
This item was used for the bilge pump discharge on a 33-ft sailboat.
March 5, 2009
The internal "wrench tabs" are not as large as competitors, and should be increased in size during the casting process.
April 23, 2008
These are well made thru hull fittings. They thread easily into Groco and other brands of seacocks. It makes for a good installation.
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