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Marine Plumbing & Ventilation - Thru-Hull Fittings
117 products
Showing 1 - 24 of 117 products
Showing 1 - 24 of 117 products
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Save $11.20
![Perko 1-1/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6A] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/products/39177XL.jpg?v=1645685799&width=1000)
Perko 1-1/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6A]
Sale price$4.99
Regular price$16.19
In stockSave $13.77
![Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE USA [0328DP8] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/products/39178XL.jpg?v=1645685807&width=1000)
Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE USA [0328DP8]
Sale price$7.99
Regular price$21.76
In stockSave $11.20
![Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/products/39176XL.jpg?v=1645685791&width=1000)
Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]
Sale price$4.99
Regular price$16.19
In stockSave $43.01
![GROCO 1 - 1/2" Slotted Hi Speed Thru - Hull w/Nut [HSSLTH - 1500 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/111453XL.jpg?v=1763020240&width=1000)
GROCO 1-1/2" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1500-W]
Sale price$79.99
Regular price$123.00
In stockSave $19.01
![GROCO 1" Slotted Hi Speed Thru - Hull w/Nut [HSSLTH - 1000 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/111451XL.jpg?v=1763020241&width=1000)
GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]
Sale price$37.99
Regular price$57.00
In stockSave $14.01
![GROCO 3/4" Slotted Hi Speed Thru - Hull w/Nut [HSSLTH - 750 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/111450XL.jpg?v=1763020241&width=1000)
GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]
Sale price$25.99
Regular price$40.00
In stockSave $34.01
![GROCO 1 - 1/4" Slotted Hi Speed Thru - Hull w/Nut [HSSLTH - 1250 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/111452XL.jpg?v=1763020241&width=1000)
GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1250-W]
Sale price$63.99
Regular price$98.00
In stockSave $60.01
![GROCO 2 - 1/2" Bronze Thru - Hull Fitting w/Nut [TH - 2500 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/103895XL.jpg?v=1744918229&width=1000)
![GROCO 2 - 1/2" Bronze Thru - Hull Fitting w/Nut [TH - 2500 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/103895BXL.jpg?v=1744918229&width=1000)
GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]
Sale price$157.99
Regular price$218.00
In stockSave $23.01
![GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/75345XL-276688.jpg?v=1713396726&width=1000)
GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]
Sale price$60.99
Regular price$84.00
In stockSave $19.01
![GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/74303XL-124857.jpg?v=1713396692&width=1000)
GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS]
Sale price$50.99
Regular price$70.00
In stockSave $16.50
![Whitecap 1 - 1/2" Duplex Stainless Steel 90 Degree Thru - Hull Fitting [6581X] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/108910XL.jpg?v=1746773316&width=1000)
![Whitecap 1 - 1/2" Duplex Stainless Steel 90 Degree Thru - Hull Fitting [6581X] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/108910BXL.jpg?v=1746744228&width=1000)
Whitecap 1-1/2" Duplex Stainless Steel 90 Degree Thru-Hull Fitting [6581X]
Sale price$95.99
Regular price$112.49
In stockSave $75.27
![Perko 1" Intake Strainer Bronze MADE IN THE USA [0065DP6PLB] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/39146XL-632353.jpg?v=1713407749&width=1000)
Perko 1" Intake Strainer Bronze MADE IN THE USA [0065DP6PLB]
Sale price$65.99
Regular price$141.26
In stockSave $8.01
![GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/75216XL-421838.jpg?v=1713396990&width=1000)
GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]
Sale price$23.99
Regular price$32.00
In stockSave $27.01
![GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/products/75351XL.jpg?v=1645793056&width=1000)
GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]
Sale price$51.99
Regular price$79.00
In stockSave $26.01
![GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/75333XL-476861.jpg?v=1713396690&width=1000)
GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]
Sale price$69.99
Regular price$96.00
In stockSave $51.73
![Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze Extra Long - Max Hull 5" Thick [0348DP5PLB] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/41820XL-772431.jpg?v=1713407869&width=1000)
Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze Extra Long - Max Hull 5" Thick [0348DP5PLB]
Sale price$66.99
Regular price$118.72
In stockSave $52.64
![Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/39145XL-358313.jpg?v=1713407868&width=1000)
Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]
Sale price$56.99
Regular price$109.63
In stockSave $25.01
![GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/75346XL-102732.jpg?v=1713396691&width=1000)
GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]
Sale price$64.99
Regular price$90.00
In stockSave $22.01
![GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/products/75349XL.jpg?v=1645793040&width=1000)
GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]
Sale price$41.99
Regular price$64.00
In stockSave $29.01
![GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/74298XL-262320.jpg?v=1713396731&width=1000)
GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]
Sale price$77.99
Regular price$107.00
In stock
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![GROCO 3" Bronze Thru - Hull Fitting w/Nut [TH - 3000 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/103896XL.jpg?v=1744919007&width=1000)
![GROCO 3" Bronze Thru - Hull Fitting w/Nut [TH - 3000 - W] - Houseboatparts.com](http://houseboatparts.com/cdn/shop/files/103896BXL.jpg?v=1744919007&width=1000)