Thru-Hull Fittings
Showing 1–12 of 112 results
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![Attwood Plastic Thru-Hull Fitting - 1-1/2" - White [3875-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-plastic-thru-hull-fitting-1-1-2-white-3875-3-1.webp)
Attwood 1.5-Inch White Plastic Thru-Hull Fitting
$19.90 Add to cart -
![Attwood White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter [3879-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-white-plastic-90-degree-thru-hull-connector-1-1-8-inner-diameter-3879-3-1.webp)
Attwood 90° Thru-Hull Connector – White Plastic, 1-1/8″ Inner Diameter (Model 3879-3)
$19.90 Add to cart -
![Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-scupper-valve-barbed-1-1-2-hose-size-66553-3-1.webp)
Attwood Stainless Steel Barbed Scupper Valve – 1-1/2-Inch Hose Connection
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Short Straight Barbed - 1-1/2" Inner Diameter [66545-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-short-straight-barbed-1-1-2-inner-diameter-66545-3-1.webp)
Attwood Stainless Steel Short Straight Barbed Thru-Hull Fitting – 1-1/2-Inch ID
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Short Straight Barbed - 3/4" Inner Diameter [66541-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-short-straight-barbed-3-4-inner-diameter-66541-3-1.webp)
Attwood Stainless Steel Short Straight Barbed Thru-Hull Fitting – 3/4-Inch ID
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/2" Inner Diameter [66551-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-standard-straight-barbed-1-1-2-inner-diameter-66551-3-1.webp)
Attwood Stainless Steel Straight Barbed Thru-Hull Fitting – 1-1/2-Inch ID
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter [66549-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-standard-straight-barbed-1-1-8-inner-diameter-66549-3-1.webp)
Attwood Stainless Steel Straight Barbed Thru-Hull Fitting – 1-1/8-Inch ID
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1" Inner Diameter [66548-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-standard-straight-barbed-1-inner-diameter-66548-3-1.webp)
Attwood Stainless Steel Straight Barbed Thru-Hull Fitting – 1-Inch ID
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner Diameter [66546-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-standard-straight-barbed-5-8-inner-diameter-66546-3-1.webp)
Attwood Stainless Steel Straight Barbed Thru-Hull Fitting – 5/8-Inch ID
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Short Straight Barbed - 1" Inner Diameter [66542-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-short-straight-barbed-1-inner-diameter-66542-3-1.webp)
Attwood Stainless Steel Thru-Hull Fitting – 1-Inch ID, Short Straight Barbed
$19.90 Add to cart -
![Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 3/4" Inner Diameter [66547-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-stainless-steel-thru-hull-standard-straight-barbed-3-4-inner-diameter-66547-3-1.webp)
Attwood Stainless Steel Thru-Hull Fitting – 3/4-Inch ID, Straight Barbed [66547-3]
$19.90 Add to cart -
![Attwood White Plastic 90 Degree Thru-Hull Connector - 3/4" Inner Diameter [3877-3] 1](https://carpartsunited.shop/wp-content/uploads/2026/05/attwood-white-plastic-90-degree-thru-hull-connector-3-4-inner-diameter-3877-3-1.webp)
Attwood White Plastic 90-Degree Thru-Hull Connector – 3/4-Inch ID
$19.90 Add to cart
Showing 1–12 of 112 results