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Compass Marine How To | all galleries >> Compass Marine How To Articles >> Seacock & Thru-Hull Primer/Pre Information > This Is a Proper Seacock
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This Is a Proper Seacock
11-JAN-2008

This Is a Proper Seacock

This item is called a seacock. A proper seacock has a flange that gets bolted to or through the hull. The seacock's purpose is to provide a positive shut off from water ingress. Flanged seacocks are considerably stronger than threading an in-line valve directly onto a thru-hull and are usually made of bronze, marelon or in some cases stainless steel.


There are many different brands of marine rated seacocks from companies like Groco, Spartan, RC Marine/Forespar, Apollo and more.

Nikon D200
1/60s f/4.0 at 42.0mm iso100 full exif

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