Collection: Marine Plumbing & Ventilation - Fittings
Keep your marine head and plumbing system running right with fittings, MSD components, bellows pump kits, and ventilation parts. Shop replacement fittings for Dometic toilets and sanitation systems, plus thru-hull and ventilation fittings for your boat. Not sure which fitting matches your system? Email orders@hawkeyemarine.net.
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GROCO 1/2" NPT Stainless Steel In-Line Ball Valve [IBV-500-S]
Regular price $76.00 USDRegular priceUnit price per$0.00 USDSale price $76.00 USD -
GROCO 1-1/2" NPT x 1-1/2" ID Bronze Pipe to Hose Straight Fitting [PTH-1500]
Regular price $35.00 USDRegular priceUnit price per$0.00 USDSale price $35.00 USD -
GROCO 1/4" NPT Bronze Inline Fuel Valve [FV-250]
Regular price $30.00 USDRegular priceUnit price per$0.00 USDSale price $30.00 USD -
GROCO 2" NPT Bronze In-Line Ball Valve [IBV-2000]
Regular price $283.00 USDRegular priceUnit price per$0.00 USDSale price $283.00 USD -
Forespar Marelon Full-Flow Seacock 3/4" Mushroom Through-Hull [904043ABYC]
Regular price $119.95 USDRegular priceUnit price per$0.00 USDSale price $119.95 USD -
Forespar Marelon Full-Flow Seacock 1/2" Mushroom Through-Hull [904042ABYC]
Regular price $115.95 USDRegular priceUnit price per$0.00 USDSale price $115.95 USD -
Jabsco Port Kit 90-Degree Elbow 1/2" Hose Fitting - Pair [30651-1000]
Regular price $11.99 USDRegular priceUnit price per$0.00 USDSale price $11.99 USD -
GROCO 1" NPT x 1-1/8" ID Bronze Full Flow 90 Elbow Pipe to Hose Fitting [FFC-1125]
Regular price $39.00 USDRegular priceUnit price per$0.00 USDSale price $39.00 USD -
GROCO Bronze Clam Shell Style Hull Strainer w/Mount Ring f/Up To 1-1/2" Thru Hull [SC-1500]
Regular price $148.00 USDRegular priceUnit price per$0.00 USDSale price $148.00 USD -
GROCO 1-1/2" NPT Stainless Steel In-Line Ball Valve [IBV-1500-S]
Regular price $175.00 USDRegular priceUnit price per$0.00 USDSale price $175.00 USD -
Rule Replacement Garden Hose Adapter [68]
Regular price $12.99 USDRegular priceUnit price per$0.00 USDSale price $12.99 USD -
Viega MegaPress 316 FKM 2" Union [91950]
Regular price $1,407.60 USDRegular priceUnit price per$0.00 USDSale price $1,407.60 USD -
T-H Marine Washdown Fitting w/Shutoff Valve [WDV-1-DP]
Regular price $45.99 USDRegular priceUnit price per$0.00 USDSale price $45.99 USD -
T-H Marine Double Barb Inline Scupper Check Valve - 3/4" - Black [ILS-750-DP]
Regular price $27.99 USDRegular priceUnit price per$0.00 USDSale price $27.99 USD -
T-H Marine Double Barb Inline Scupper Check Valve - 1-1/2" - Black [ILS-1500-DP]
Regular price $27.99 USDRegular priceUnit price per$0.00 USDSale price $27.99 USD -
GROCO 1/2" NPT x 1/2" ID Bronze Pipe to Hose Straight Fitting [PTH-500]
Regular price $9.00 USDRegular priceUnit price per$0.00 USDSale price $9.00 USD -
GROCO Bronze Pipe Nipple - 1/2" NPT [PN-500]
Regular price $10.00 USDRegular priceUnit price per$0.00 USDSale price $10.00 USD -
Forespar Marelon Full-Flow Seacock 1" Mushroom Through-Hull [904044ABYC]
Regular price $154.95 USDRegular priceUnit price per$0.00 USDSale price $154.95 USD -
GROCO 3/4" NPT x 1" ID Bronze Full Flow 90 Elbow Pipe to Hose Fitting [FFC-750]
Regular price $28.00 USDRegular priceUnit price per$0.00 USDSale price $28.00 USD -
GROCO 1/2" 5-Port Tank Selector Valve [FV-550-L]
Regular price $201.00 USDRegular priceUnit price per$0.00 USDSale price $201.00 USD -
Forespar Marelon Full-Flow Seacock 1-1/4" Mushroom Through-Hull [904045ABYC]
Regular price $184.95 USDRegular priceUnit price per$0.00 USDSale price $184.95 USD -
Forespar Marelon Full-Flow Seacock 2" Mushroom Through-Hull [904048ABYC]
Regular price $269.95 USDRegular priceUnit price per$0.00 USDSale price $269.95 USD -
Forespar Marelon Full-Flow Seacock 1-1/2" Mushroom Through-Hull [904046ABYC]
Regular price $199.95 USDRegular priceUnit price per$0.00 USDSale price $199.95 USD -
GROCO Bronze Round Hull Strainer w/Access Door f/Up To 4" Thru-Hull [RSC-4000]
Regular price $624.00 USDRegular priceUnit price per$0.00 USDSale price $624.00 USD
![GROCO 1/2" NPT Stainless Steel In-Line Ball Valve [IBV-500-S]](http://hawkeyemarine.net/cdn/shop/files/74197XL.jpg?v=1755733498&width=533)
![GROCO 1-1/2" NPT x 1-1/2" ID Bronze Pipe to Hose Straight Fitting [PTH-1500]](http://hawkeyemarine.net/cdn/shop/files/74259XL.jpg?v=1735604688&width=533)
![GROCO 1/4" NPT Bronze Inline Fuel Valve [FV-250]](http://hawkeyemarine.net/cdn/shop/files/74409XL.jpg?v=1735604934&width=533)
![GROCO 2" NPT Bronze In-Line Ball Valve [IBV-2000]](http://hawkeyemarine.net/cdn/shop/files/74194XL.jpg?v=1735604565&width=533)
![Forespar Marelon Full-Flow Seacock 3/4" Mushroom Through-Hull [904043ABYC]](http://hawkeyemarine.net/cdn/shop/files/68947XL.jpg?v=1764613033&width=533)
![Forespar Marelon Full-Flow Seacock 1/2" Mushroom Through-Hull [904042ABYC]](http://hawkeyemarine.net/cdn/shop/files/68945XL.jpg?v=1764613032&width=533)
![Jabsco Port Kit 90-Degree Elbow 1/2" Hose Fitting - Pair [30651-1000]](http://hawkeyemarine.net/cdn/shop/files/106692XL.jpg?v=1731630060&width=533)
![GROCO 1" NPT x 1-1/8" ID Bronze Full Flow 90 Elbow Pipe to Hose Fitting [FFC-1125]](http://hawkeyemarine.net/cdn/shop/files/74182XL.jpg?v=1735604516&width=533)
![GROCO Bronze Clam Shell Style Hull Strainer w/Mount Ring f/Up To 1-1/2" Thru Hull [SC-1500]](http://hawkeyemarine.net/cdn/shop/files/75309XL.jpg?v=1735605267&width=533)
![GROCO 1-1/2" NPT Stainless Steel In-Line Ball Valve [IBV-1500-S]](http://hawkeyemarine.net/cdn/shop/files/74201XL.jpg?v=1755733499&width=533)
![Rule Replacement Garden Hose Adapter [68]](http://hawkeyemarine.net/cdn/shop/files/48258XL.jpg?v=1735245506&width=533)
![Viega MegaPress 316 FKM 2" Union [91950]](http://hawkeyemarine.net/cdn/shop/files/103814XL.jpg?v=1715907914&width=533)
![T-H Marine Washdown Fitting w/Shutoff Valve [WDV-1-DP]](http://hawkeyemarine.net/cdn/shop/files/100597XL.jpg?v=1764625588&width=533)
![T-H Marine Double Barb Inline Scupper Check Valve - 3/4" - Black [ILS-750-DP]](http://hawkeyemarine.net/cdn/shop/files/83961XL.jpg?v=1764619008&width=533)
![T-H Marine Double Barb Inline Scupper Check Valve - 1-1/2" - Black [ILS-1500-DP]](http://hawkeyemarine.net/cdn/shop/files/83963XL.jpg?v=1764619009&width=533)
![GROCO 1/2" NPT x 1/2" ID Bronze Pipe to Hose Straight Fitting [PTH-500]](http://hawkeyemarine.net/cdn/shop/files/74253XL.jpg?v=1764615007&width=533)
![GROCO Bronze Pipe Nipple - 1/2" NPT [PN-500]](http://hawkeyemarine.net/cdn/shop/files/75235XL.jpg?v=1764615394&width=533)
![Forespar Marelon Full-Flow Seacock 1" Mushroom Through-Hull [904044ABYC]](http://hawkeyemarine.net/cdn/shop/files/68949XL.jpg?v=1764613033&width=533)
![GROCO 3/4" NPT x 1" ID Bronze Full Flow 90 Elbow Pipe to Hose Fitting [FFC-750]](http://hawkeyemarine.net/cdn/shop/files/74180XL.jpg?v=1764614885&width=533)
![GROCO 1/2" 5-Port Tank Selector Valve [FV-550-L]](http://hawkeyemarine.net/cdn/shop/files/74416XL.jpg?v=1764615010&width=533)
![Forespar Marelon Full-Flow Seacock 1-1/4" Mushroom Through-Hull [904045ABYC]](http://hawkeyemarine.net/cdn/shop/files/68951XL.jpg?v=1764613033&width=533)
![Forespar Marelon Full-Flow Seacock 2" Mushroom Through-Hull [904048ABYC]](http://hawkeyemarine.net/cdn/shop/files/68953XL.jpg?v=1764613034&width=533)
![Forespar Marelon Full-Flow Seacock 1-1/2" Mushroom Through-Hull [904046ABYC]](http://hawkeyemarine.net/cdn/shop/files/68952XL.jpg?v=1764613034&width=533)
![GROCO Bronze Round Hull Strainer w/Access Door f/Up To 4" Thru-Hull [RSC-4000]](http://hawkeyemarine.net/cdn/shop/files/75272XL.jpg?v=1755733503&width=533)