Collection: Marine Plumbing & Ventilation - Thru-Hull Fittings
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![GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]](//marineandrvsupply.com/cdn/shop/files/75331XL.jpg?v=1722486047&width=533)
14% offGROCOGROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]
1" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600...
$57.99 USD $68.00 USD$57.99 USD$57.99 USD $68.00 USDOnly 8 units left -
![GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]](//marineandrvsupply.com/cdn/shop/files/75389XL.jpg?v=1722486514&width=533)
13% offGROCOGROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]
3/4" 90 Degree Hose Thru-Hull Fitting Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed...
$51.99 USD $60.00 USD$51.99 USD$51.99 USD $60.00 USDOnly 8 units left -
![GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]](//marineandrvsupply.com/cdn/shop/files/75334XL.jpg?v=1722486073&width=533)
24% offGROCOGROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]
2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600...
$137.99 USD $183.00 USD$137.99 USD$137.99 USD $183.00 USDOnly 2 units left -
![GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]](//marineandrvsupply.com/cdn/shop/files/103896XL.jpg?v=1722610026&width=533)
![GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]](//marineandrvsupply.com/cdn/shop/files/103896BXL.jpg?v=1722610029&width=370)
27% offGROCOGROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]
3" Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls.Features: NPSM...
$263.99 USD $365.00 USD$263.99 USD$263.99 USD $365.00 USDOnly 3 units left -
![GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]](//marineandrvsupply.com/cdn/shop/files/75380XL.jpg?v=1722486433&width=533)
22% offGROCOGROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]
2" Bronze High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag...
$94.99 USD $122.00 USD$94.99 USD$94.99 USD $122.00 USDOnly 2 units left -
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]](//marineandrvsupply.com/cdn/shop/files/75226XL.jpg?v=1722485399&width=533)
7% offGROCOGROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]
Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications:...
$39.99 USD $43.00 USD$39.99 USD$39.99 USD $43.00 USD13 in stock -
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]](//marineandrvsupply.com/cdn/shop/files/75223XL.jpg?v=1722485372&width=533)
0% offGROCOGROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]
Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications:...
$34.99 USD $35.00 USD$34.99 USD$34.99 USD $35.00 USD15 in stock -
![GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]](//marineandrvsupply.com/cdn/shop/files/74290XL.jpg?v=1722481590&width=533)
GROCOGROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]
3/4" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL...
$27.99 USD $0.00 USD$27.99 USD$27.99 USD $0.00 USD46 in stock -
![Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]](//marineandrvsupply.com/cdn/shop/files/39189XL.jpg?v=1722401745&width=533)
40% offPerkoPerko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]
Perko 1-1/8" Thru-Hull Connection f/ use with Hose Chrome Plated BronzeFlange is machined to fit and grooved to retain bedding...
$66.99 USD $113.32 USD$66.99 USD$66.99 USD $113.32 USDOnly 4 units left -
![Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]](//marineandrvsupply.com/cdn/shop/files/39174XL.jpg?v=1722401628&width=533)
3% offPerkoPerko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]
Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 5/8 Mounting Hole Diameter...
$16.99 USD $17.57 USD$16.99 USD$16.99 USD $17.57 USDOnly 9 units left -
![Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]](//marineandrvsupply.com/cdn/shop/files/39149XL.jpg?v=1722401493&width=533)
24% offPerkoPerko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]
Perko 5" X 3-1/4" Scoop Strainer BronzeCast bronzeMachine slotsTechnical Information: For Thru-Hull Size Inches: 3/4 & 1 Dimensions Strainer Inches:...
$46.99 USD $62.16 USD$46.99 USD$46.99 USD $62.16 USD13 in stock -
![GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]](//marineandrvsupply.com/cdn/shop/files/103895XL.jpg?v=1727388063&width=533)
![GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]](//marineandrvsupply.com/cdn/shop/files/103895BXL.jpg?v=1727388065&width=370)
26% offGROCOGROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]
2-1/2" Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 2-1/2" GROCO thru-hull fitting than conventional thru-hulls.Features: NPSM...
$186.99 USD $254.00 USD$186.99 USD$186.99 USD $254.00 USDOnly 6 units left
![GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]](http://marineandrvsupply.com/cdn/shop/files/75331XL.jpg?v=1722486047&width=533)
![GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]](http://marineandrvsupply.com/cdn/shop/files/75389XL.jpg?v=1722486514&width=533)
![GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]](http://marineandrvsupply.com/cdn/shop/files/75334XL.jpg?v=1722486073&width=533)
![GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]](http://marineandrvsupply.com/cdn/shop/files/103896XL.jpg?v=1722610026&width=533)
![GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]](http://marineandrvsupply.com/cdn/shop/files/103896BXL.jpg?v=1722610029&width=370)
![GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]](http://marineandrvsupply.com/cdn/shop/files/75380XL.jpg?v=1722486433&width=533)
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]](http://marineandrvsupply.com/cdn/shop/files/75226XL.jpg?v=1722485399&width=533)
![GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]](http://marineandrvsupply.com/cdn/shop/files/75223XL.jpg?v=1722485372&width=533)
![GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]](http://marineandrvsupply.com/cdn/shop/files/74290XL.jpg?v=1722481590&width=533)
![Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]](http://marineandrvsupply.com/cdn/shop/files/39189XL.jpg?v=1722401745&width=533)
![Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]](http://marineandrvsupply.com/cdn/shop/files/39174XL.jpg?v=1722401628&width=533)
![Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]](http://marineandrvsupply.com/cdn/shop/files/39149XL.jpg?v=1722401493&width=533)
![GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]](http://marineandrvsupply.com/cdn/shop/files/103895XL.jpg?v=1727388063&width=533)
![GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]](http://marineandrvsupply.com/cdn/shop/files/103895BXL.jpg?v=1727388065&width=370)
