Collection: Marine Plumbing & Ventilation - Thru-Hull Fittings
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![GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]](//marineandrvsupply.com/cdn/shop/files/75351XL.jpg?v=1722486222&width=533)
17% offGROCOGROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]
1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Hose...
$64.99 USD $79.00 USD$64.99 USD$64.99 USD $79.00 USDOnly 2 units left -
![GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]](//marineandrvsupply.com/cdn/shop/files/75345XL.jpg?v=1722486169&width=533)
17% offGROCOGROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]
1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/4"...
$68.99 USD $84.00 USD$68.99 USD$68.99 USD $84.00 USDOnly 1 units left -
![GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]](//marineandrvsupply.com/cdn/shop/files/75333XL.jpg?v=1722486064&width=533)
19% offGROCOGROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]
1-1/2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600...
$76.99 USD $96.00 USD$76.99 USD$76.99 USD $96.00 USDOnly 1 units left -
![Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze Extra Long - Max Hull 5" Thick [0348DP5PLB]](//marineandrvsupply.com/cdn/shop/files/41820XL.jpg?v=1722404855&width=533)
34% offPerkoPerko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze Extra Long - Max Hull 5" Thick [0348DP5PLB]
Extra Long Thru-Hull Connection for Use with PipePart #: 0348DP5PLBFlange is machined to fit the hull and grooved to retain...
$77.99 USD $118.72 USD$77.99 USD$77.99 USD $118.72 USDOnly 5 units left -
![Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]](//marineandrvsupply.com/cdn/shop/files/39145XL.jpg?v=1722401460&width=533)
40% offPerkoPerko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]
Perko 3/4" Intake Strainer BronzeCast bronzeMachined SlotsTechnical Information: Maximum Pipe Size Inches: 3/4 Maximum Hull Thickness Inches: 2-3/16 Dimensions Strainer...
$64.99 USD $109.63 USD$64.99 USD$64.99 USD $109.63 USDOnly 10 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...
$227.99 USD $313.00 USD$227.99 USD$227.99 USD $313.00 USDOnly 1 units left -
![GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]](//marineandrvsupply.com/cdn/shop/files/75346XL.jpg?v=1722486177&width=533)
18% offGROCOGROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]
1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/2"...
$72.99 USD $90.00 USD$72.99 USD$72.99 USD $90.00 USDOnly 8 units left -
![GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]](//marineandrvsupply.com/cdn/shop/files/75349XL.jpg?v=1722486204&width=533)
14% offGROCOGROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]
1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Material:...
$54.99 USD $64.00 USD$54.99 USD$54.99 USD $64.00 USDOnly 2 units left -
![GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]](//marineandrvsupply.com/cdn/shop/files/74298XL.jpg?v=1722481624&width=533)
20% offGROCOGROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]
2" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL...
$84.99 USD $107.00 USD$84.99 USD$84.99 USD $107.00 USDOnly 6 units left -
![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:...
$33.99 USD $34.00 USD$33.99 USD$33.99 USD $34.00 USD20 in stock -
![GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]](//marineandrvsupply.com/cdn/shop/files/75216XL.jpg?v=1722485313&width=533)
GROCOGROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]
Bronze Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size:...
$32.99 USD$32.99 USD$32.99 USDOnly 1 units left -
![GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS]](//marineandrvsupply.com/cdn/shop/files/74303XL.jpg?v=1722481667&width=533)
15% offGROCOGROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS]
1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2"...
$58.99 USD $70.00 USD$58.99 USD$58.99 USD $70.00 USDOnly 2 units left
![GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]](http://marineandrvsupply.com/cdn/shop/files/75351XL.jpg?v=1722486222&width=533)
![GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]](http://marineandrvsupply.com/cdn/shop/files/75345XL.jpg?v=1722486169&width=533)
![GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]](http://marineandrvsupply.com/cdn/shop/files/75333XL.jpg?v=1722486064&width=533)
![Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze Extra Long - Max Hull 5" Thick [0348DP5PLB]](http://marineandrvsupply.com/cdn/shop/files/41820XL.jpg?v=1722404855&width=533)
![Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]](http://marineandrvsupply.com/cdn/shop/files/39145XL.jpg?v=1722401460&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 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]](http://marineandrvsupply.com/cdn/shop/files/75346XL.jpg?v=1722486177&width=533)
![GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]](http://marineandrvsupply.com/cdn/shop/files/75349XL.jpg?v=1722486204&width=533)
![GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]](http://marineandrvsupply.com/cdn/shop/files/74298XL.jpg?v=1722481624&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 Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]](http://marineandrvsupply.com/cdn/shop/files/75216XL.jpg?v=1722485313&width=533)
![GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS]](http://marineandrvsupply.com/cdn/shop/files/74303XL.jpg?v=1722481667&width=533)
