Raw Water Strainers and Accessories
Boat owners depend on seawater to operate many boat systems — but they need a way to prevent dirt, sediment, crustacean shells and other debris from getting into those systems. A marine sea strainer catches those particles before they can reach the water pump, helping equipment last longer and perform better. We offer a variety of seawater strainer kits to protect engines, air conditioners, generators, livewells and more. Boat owners can always get the correct parts from our extensive catalog and enjoy free U.S. shipping on orders over $100.
Protect Your Boat with Seawater Filtration
Sea strainers come in several designs with NPT or barbed fittings for secure connections. Those fittings range from 1/2-inch to 2.5 inches or more depending on the lines or hoses you’re using. Durable materials such as bronze, stainless steel and polyethylene resist saltwater corrosion — and the filters are fully serviceable to extend their operating life. Specialty components include cooling water strainers to lower temperatures and special bilge water strainers for these heavy-duty pumps. Trust the leading marine plumbing brands such as Groco, Sherwood, Perko, Vetus and Jabsco.
Marine Parts Source also has parts and accessories to maintain or repair your current sea strainer. Shop for OEM replacement strainer bowls, caps, tie rods, seals, guards and baskets at competitive prices. Many of these products are in stock, which ensures faster delivery and gives our customer service representatives a deeper understanding of each component so they can better assist you. Contact us at 866-388-0390 to discuss your raw water strainer needs.
Strainers
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Perko Strainer Rubber Gasket Kit | Perko 0493DP999RPERKO-0493DP999RQty In Stock: 10Brand: PerkoReplacement rubber gasket set for #8, #9, & #10 size Perko 0493 series 1-1/2 inch, 2 inch, & 2-1/2 inch NPT intake water strainers. Learn More
1 in. NPT Seawater Strainer | Sherwood 18005SHER-18005Qty In Stock: 51Brand: Sherwood Pumps20 mesh raw water intake strainer offers full flow filtering to protect engines, generators, air conditioners and other pumps from debris. Learn More
ARG Sight Glass w/Drain Plug | Groco ARG-503GROCO-ARG-503Qty In Stock: 18Brand: GrocoReplacement sight glass for Groco ARG-500 & ARG-755 raw water strainers. Learn More
Seawater Strainer Bowl | Sherwood 14380SHER-14380Qty In Stock: 17Brand: Sherwood PumpsReplacement screw-on clear bowl for Sherwood 1 in., 1 1/4 in. and 1 1/2 in. NPT marine seawater strainers. Learn More
90 degree Snap Port Pumpgard Strainer | Jabsco 46400-9500JABSCO-46400-9500Qty In Stock: 20Brand: JabscoInlet strainer protects Jabsco electric diaphragm pumps with snap ports from damage.
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3 in. ARG Raw Water Strainer w/Stainless Steel Filter Basket, 19.8 in. Tall | Groco ARG-3000-SGROCO-ARG-3000-SQty In Stock: 0Brand: GrocoThis bronze raw water strainer is made in the USA, includes 3 inch female NPT ports, and features a stainless steel filter basket. The overall height of this strainer is 19.8 inches. Learn More
1-1/4 inch Transparent Cylinder Strainer | Perko 049300799CPERKO-049300799CQty In Stock: 12Brand: PerkoReplacement cylinder for #7 size Perko 0493 series 1-1/4 inch NPT intake water strainer.
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1-1/4 inch NPT Seawater Strainer | Sherwood 18016SHER-18016Qty In Stock: 11Brand: Sherwood Pumps20 mesh raw water intake strainer offers full flow filtering to protect engines, generators, air conditioners and other pumps from debris. Learn More
Brass Tie Rod with Nut & Washer | Perko 0500DP999PPERKO-0500DP999PQty In Stock: 3Brand: PerkoBrass Tie Rod with Nut & Washer
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3/4 in. NPT Seawater Strainer | Sherwood 18001SHER-18001Qty In Stock: 118Brand: Sherwood Pumps20 mesh raw water intake strainer offers full flow filtering to protect engines, generators, air conditioners and other pumps from debris. Learn More
Strainer Rubber Gasket Kit | Perko 0493DP799RPERKO-0493DP799RQty In Stock: 26Brand: PerkoReplacement rubber gasket set for #6 & #7 size Perko 0493 series 1 in. & 1 1/4 in. NPT intake water strainers. Learn More
Strainer Hinged Cover Bolt | Perko 0493DP599LPERKO-0493DP599LQty In Stock: 26Brand: PerkoReplacement hinged bolt for #4 & #5 size Perko 0493 series 1/2 in. & 3/4 in. NPT intake water strainers. Learn More© 2025 Marine Parts Source. All Rights Reserved.