Attwood Thru-Hull Connectors
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  • Attwood Thru-Hull Connectors

Attwood Thru-Hull Connectors

Attwood Thru-Hull Connectors are constructed from high impact rugged white plastic. They will not rust corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. Maximum hull thickness is 1-1/4in.

Not for below waterline use.

IN STOCK - Available for pickup
$5.98 / ea
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Tech Spec Product Info User Generated Content
Item #  Hose Size"  Stem"  Flange"  Hole" 
ATT 38723  5/8in Straight  3-1/4in  1-1/4in  1-1/8in 
ATT 38733  3/4in Straight  3-1/4in  1-1/4in  1-1/8in 
ATT 38773  3/4in 90degree  3-1/4in  1-1/4in  1-1/8in 
ATT 38743  1-1/8in Straight  3-1/4in  2-1/4in  1-3/8in 
ATT 38791  1-1/8in 90degree  3-1/4in  2-1/4in  1-3/8in 
ATT 38753  1-1/2in Straight  3-1/2in  3in  1-7/8-2in 
WARNING: These products may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to

BRAND: Attwood
Material: Plastic
Type: Thru-Hulls
3.3 3

It would be really nice to know what size on both ends.


Haven't ordered one because there's not enough info on what size they are. I need an 1 1/2 on threaded end . And 1 1/8 on barbed end. Confused on how to order because of lack of info on what you are buying.



Great Product


Attractive Accurate Well Made.

Bob M

Monroe, Michigan. Lake Erie


Good product- well made & cost effective


Product was used to add a drain to a humidifier holding tank so that the tank could be drained for easier removal. Drain was connected through a shut off valve to an existing 5/8 inch vinyl tube. Had to buy a neoprene washer to make it leak tight. Two humidifiers were modified and the total cost of the parts was less than $15 for each tank.


Pittsburgh, PA


Attwood Thru-Hull Connectors



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