Skip to content
Search
Home
Account
Site navigation
Search
Search
Cart
Menu
Site navigation
Home
Account
Item added to cart.
View cart and check out
.
Close
Close
Marine Plumbing & Ventilation - Thru-Hull Fittings
Filter by
All
1st Class Eligible
Brand_Attwood Marine
Brand_Forespar Performance Products
Brand_GROCO
Brand_Perko
Brand_T-H Marine Supplies
Clearance
Marine Plumbing & Ventilation
Marine Plumbing & Ventilation | Accessories
Marine Plumbing & Ventilation | Thru-Hull Fittings
Specials
Sort by
Featured
Most relevant
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]
Regular price
$56
Sale price
$40.99
Sale
View
GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]
No reviews
Regular price
$41
Sale price
$29.99
Sale
View
GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]
Regular price
$166
Sale price
$119.99
Sale
View
GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]
No reviews
Regular price
$332
Sale price
$239.99
Sale
View
GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]
Regular price
$107
Sale price
$77.99
Sale
View
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]
Regular price
$43
Sale price
$31.99
Sale
View
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]
Regular price
$34
Sale price
$24.99
Sale
View
GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]
No reviews
Regular price
$61
Sale price
$44.99
Sale
View
GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]
Regular price
$86
Sale price
$62.99
Sale
View
GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]
Regular price
$23
Sale price
$16.99
Sale
View
GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]
Regular price
$23
Sale price
$16.99
Sale
View
Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]
Regular price
$113.32
Sale price
$59.99
Sale
View
Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]
Regular price
$17.57
Sale price
$6.99
Sale
View
Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]
Regular price
$62.16
Sale price
$38.99
Sale
View
Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]
Regular price
$16.19
Sale price
$4.99
Sale
View
GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-1250-W]
Regular price
$66
Sale price
$47.99
Sale
View
GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]
No reviews
Regular price
$231
Sale price
$166.99
Sale
View
GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1250-W]
No reviews
Regular price
$104
Sale price
$75.99
Sale
View
GROCO 2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-2000-WS]
Regular price
$86
Sale price
$62.99
Sale
View
GROCO 1" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1000-W]
Regular price
$33
Sale price
$23.99
Sale
View
1
2
3
…
6
→
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
![GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]](http://kjoutfitters.com/cdn/shop/products/75389XL_{width}x.jpg?v=1614792775)
![GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]](http://kjoutfitters.com/cdn/shop/products/75389XL_480x480.jpg?v=1614792775)
![GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]](http://kjoutfitters.com/cdn/shop/files/111450XL_{width}x.jpg?v=1766095520)
![GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]](http://kjoutfitters.com/cdn/shop/files/111450XL_480x480.jpg?v=1766095520)
![GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]](http://kjoutfitters.com/cdn/shop/products/75334XL_{width}x.jpg?v=1614792368)
![GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]](http://kjoutfitters.com/cdn/shop/products/75334XL_480x480.jpg?v=1614792368)
![GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]](http://kjoutfitters.com/cdn/shop/files/103896XL_{width}x.jpg?v=1715138367)
![GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]](http://kjoutfitters.com/cdn/shop/files/103896XL_480x480.jpg?v=1715138367)
![GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]](http://kjoutfitters.com/cdn/shop/products/75380XL_{width}x.jpg?v=1614792696)
![GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]](http://kjoutfitters.com/cdn/shop/products/75380XL_480x480.jpg?v=1614792696)
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]](http://kjoutfitters.com/cdn/shop/products/75226XL_{width}x.jpg?v=1614791563)
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]](http://kjoutfitters.com/cdn/shop/products/75226XL_480x480.jpg?v=1614791563)
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]](http://kjoutfitters.com/cdn/shop/products/75223XL_{width}x.jpg?v=1614791537)
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]](http://kjoutfitters.com/cdn/shop/products/75223XL_480x480.jpg?v=1614791537)
![GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]](http://kjoutfitters.com/cdn/shop/files/111451XL_{width}x.jpg?v=1766095520)
![GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]](http://kjoutfitters.com/cdn/shop/files/111451XL_480x480.jpg?v=1766095520)
![GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]](http://kjoutfitters.com/cdn/shop/products/75332XL_{width}x.jpg?v=1614792351)
![GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]](http://kjoutfitters.com/cdn/shop/products/75332XL_480x480.jpg?v=1614792351)
![GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]](http://kjoutfitters.com/cdn/shop/products/74290XL_{width}x.jpg?v=1614786631)
![GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]](http://kjoutfitters.com/cdn/shop/products/74290XL_480x480.jpg?v=1614786631)
![GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]](http://kjoutfitters.com/cdn/shop/products/75376XL_{width}x.jpg?v=1614792660)
![GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]](http://kjoutfitters.com/cdn/shop/products/75376XL_480x480.jpg?v=1614792660)
![Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]](http://kjoutfitters.com/cdn/shop/products/39189XL_{width}x.jpg?v=1614671785)
![Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]](http://kjoutfitters.com/cdn/shop/products/39189XL_480x480.jpg?v=1614671785)
![Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]](http://kjoutfitters.com/cdn/shop/products/39174XL_{width}x.jpg?v=1614671668)
![Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]](http://kjoutfitters.com/cdn/shop/products/39174XL_480x480.jpg?v=1614671668)
![Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]](http://kjoutfitters.com/cdn/shop/products/39149XL_{width}x.jpg?v=1614671516)
![Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]](http://kjoutfitters.com/cdn/shop/products/39149XL_480x480.jpg?v=1614671516)
![Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]](http://kjoutfitters.com/cdn/shop/products/39176XL_{width}x.jpg?v=1614671684)
![Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]](http://kjoutfitters.com/cdn/shop/products/39176XL_480x480.jpg?v=1614671684)
![GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-1250-W]](http://kjoutfitters.com/cdn/shop/products/75378XL_{width}x.jpg?v=1614792678)
![GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-1250-W]](http://kjoutfitters.com/cdn/shop/products/75378XL_480x480.jpg?v=1614792678)
![GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]](http://kjoutfitters.com/cdn/shop/files/103895XL_{width}x.jpg?v=1727381555)
![GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]](http://kjoutfitters.com/cdn/shop/files/103895XL_480x480.jpg?v=1727381555)
![GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1250-W]](http://kjoutfitters.com/cdn/shop/files/111452XL_{width}x.jpg?v=1766095521)
![GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1250-W]](http://kjoutfitters.com/cdn/shop/files/111452XL_480x480.jpg?v=1766095521)
![GROCO 2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-2000-WS]](http://kjoutfitters.com/cdn/shop/products/75352XL_{width}x.jpg?v=1614792536)
![GROCO 2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-2000-WS]](http://kjoutfitters.com/cdn/shop/products/75352XL_480x480.jpg?v=1614792536)
![GROCO 1" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1000-W]](http://kjoutfitters.com/cdn/shop/products/74291XL_{width}x.jpg?v=1614786639)
![GROCO 1" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1000-W]](http://kjoutfitters.com/cdn/shop/products/74291XL_480x480.jpg?v=1614786639)