Attwood Common Size Stainless Thru Hull Fitting

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Attwood Common Size Stainless Thru Hull Fitting
Attwood Common Size Stainless Thru Hull Fitting
Attwood Common Size Stainless Thru Hull Fitting
Attwood Common Size Stainless Thru Hull Fitting
Regular price
From $15.99

Item: 36006-100

Common-size thru-hull connector for 3/4", 1" and 1-1/8" hose has the same external size for a uniform look, no matter what size hose you're using.

With most ballast systems using 1" or 1-1/8" hose to maximize speed these thru-hull fittings make it easy to get a perfect match with existing 3/4" thru-hull connections (used for the bilge pump or existing ballast). Available in 3/4", 1" and 1-1/8" internal hose barb connections with the exact same external dimensions, you can have matching thru-hull connections for everything in the boat, but use either 3/4", 1" or 1-1/8" hose depending on the application.

Size A Flange O.D. B Neck Length C Holesaw Size
Thru-hull Intake Fitting Dimensions 3/4" 1-7/10" 3" 1-5/16" buy now »
1" 1-7/10" 3" 1-5/16" buy now »
1-1/8" 1-7/10" 2-7/8" 1-5/16" buy now »

This family of fittings is identical on the exterior, so what you see outside the boat will be exactly the same, no matter which size hose you connect to on the inside. If you suffer from OCD, this is the thru-hull connector that you've been looking for.

Suitable for use as a drain or vent fitting for above the waterline, the extended length barb has plenty of surface area to create a leak-proof connection to standard 3/4", 1" or 1-1/8" ballast hose while the compact size makes it easier to make hose connections, even in cramped locations. Perfect for finishing your integrated ballast system, or for upgrading the look of your factory thru-hull fittings.

No Warranty
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average rating 4.0 out of 5
Based on 1 review
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1 Review
Reviewed by J C.
Verified Buyer
I recommend this product
Rated 4 out of 5
Review posted

Beautiful and beautifully made

Bought several of these from Wakemakers for use as vents - 2 of the 1-1/8” each side to give air to anchor lockers and forepeak area, 1 of the 3/4” each side to give air to holding tank. They are very good-looking and were very easy to install. The boat is unique in many ways but people often ask what the holes are for (look like old-fashioned Buick ‘portholes’) and when I tell them they’re all the same OD while not all being the same hose size they’re envious and ask where I got them - which I readily tell them!

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This product can expose you to chemicals including DINP (Diisononyl phthalate) and DIDP (Diisodecyl phthalate) which are known to the State of California to cause cancer. For more information go to

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