Plumbing & Sanitation

Explore top-quality marine plumbing and boat sanitation solutions including bilge pumps, ballast pumps, marine hoses, engine cooling pumps, and essential plumbing accessories. Perfect for maintaining safe, reliable boat operations in both freshwater and saltwater environments.



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  • THRU HULL 90* WHT 1-1/8" MPN--560829

    THRU HULL 90* WHT 1-1/8" MPN--560829 SKU: DM-7-0364
    MPN: 7-0364

    $4.69
    $5.21
    $4.69
    (-10%)
    THRU HULL 90* WHT 1-1/8" Brand: T-H Marine Supplies LLC-Huntsville This 90-degree thru-hull fitting is a critical component for marine plumbing systems, designed to create a watertight connection through the hull of a boat. Its angled design allows for efficient routing of hoses and...
    $4.69
    $5.21
    $4.69
    (-10%)
  • 1/4" 90 ST. ELL- BRASS MPN-44-161

    1/4" 90 ST. ELL- BRASS MPN-44-161 SKU: DM-467250
    MPN: 44-161

    $17.19
    $19.08
    $17.19
    (-10%)
    1/4" 90 ST. ELL- BRASS Navigate tight spaces and create smooth directional changes in your marine plumbing systems with the Seastar 1/4" 90 ST. ELL- BRASS. This high-quality brass elbow fitting is designed to provide a reliable and corrosion-resistant 90-degree turn, ensuring efficient fluid...
    $17.19
    $19.08
    $17.19
    (-10%)
  • 1/2"TO3/8" RED. COUPLING MPN-44-435
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    1/2"TO3/8" RED. COUPLING MPN-44-435 SKU: DM-467438
    MPN: 44-435

    $17.39
    $19.30
    $17.39
    (-10%)
    1/2"TO3/8" RED. COUPLING This essential plumbing component, a reducer coupling, facilitates seamless transitions between different pipe sizes, ensuring efficient fluid flow in various applications. Designed for durability and ease of use, it's a vital part of any plumbing system where size adjustments are necessary....
    $17.39
    $19.30
    $17.39
    (-10%)
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  • ADAPTER 1-1/8"-GARDEN HS MPN-68

    ADAPTER 1-1/8"-GARDEN HS MPN-68 SKU: DM-582812
    MPN: 68

    $13.79
    $15.31
    $13.79
    (-10%)
    ADAPTER 1-1/8"-GARDEN HS Connect your marine plumbing systems to standard garden hoses with the T-H Marine ADAPTER 1-1/8"-GARDEN HS. This adapter provides a convenient and reliable solution for temporary connections, testing, or specific onboard needs where a garden hose interface is required. Its robust...
    $13.79
    $15.31
    $13.79
    (-10%)
  • THRU HULL BLK 1-1/8 MPN--563751

    THRU HULL BLK 1-1/8 MPN--563751 SKU: DM-7-0356
    MPN: 7-0356

    $3.49
    $3.87
    $3.49
    (-10%)
    THRU HULL BLK 1-1/8 Brand: T-H Marine Supplies LLC-Huntsville Ensure secure and efficient water flow in your marine applications with the T-H Marine THRU HULL BLK 1-1/8. This essential component is designed for reliable performance in demanding marine environments, providing a crucial connection point...
    $3.49
    $3.87
    $3.49
    (-10%)
  • DRAIN PLUG W/ORING ARG PRE-2001 MPN-ARG-0506

    DRAIN PLUG W/ORING ARG PRE-2001 MPN-ARG-0506 SKU: DM-373645
    MPN: ARG-0506

    $5.39
    $5.98
    $5.39
    (-10%)
    DRAIN PLUG W/ORING ARG PRE-2001 Brand: Gross Mech Laboratories This Drain Plug with O-ring, specifically designed for pre-2001 applications, is a crucial component for sealing openings and preventing leaks in various systems. Manufactured by Gross Mech Laboratories, this drain plug ensures a secure and...
    $5.39
    $5.98
    $5.39
    (-10%)
  • THRU-HULL CHR 3/4 MPN-TH-750CP-DP

    THRU-HULL CHR 3/4 MPN-TH-750CP-DP SKU: DM-6400319
    MPN: TH-750CP-DP

    $9.99
    $11.09
    $9.99
    (-10%)
    THRU-HULL CHR 3/4 This 3/4" Chrome Thru-Hull Fitting is a critical component for marine vessels, allowing for the passage of water through the hull while maintaining a watertight seal. Its robust construction and corrosion-resistant chrome plating ensure durability and longevity in harsh marine environments....
    $9.99
    $11.09
    $9.99
    (-10%)
  • 1/4" TEES- BRASS MPN-44-251

    1/4" TEES- BRASS MPN-44-251 SKU: DM-467856
    MPN: 44-251

    $18.09
    $20.08
    $18.09
    (-10%)
    1/4" TEES- BRASS The 1/4" TEES- BRASS fitting is a fundamental component for creating branching connections in plumbing and fluid distribution systems. Crafted from high-quality brass, this tee allows for the diversion or combination of flow in three directions, offering a reliable and durable...
    $18.09
    $20.08
    $18.09
    (-10%)
  • 3/8" TEES- BRASS MPN-44-252

    3/8" TEES- BRASS MPN-44-252 SKU: DM-467868
    MPN: 44-252

    $18.09
    $20.08
    $18.09
    (-10%)
    3/8" TEES- BRASS This 3/8" Brass Tee Fitting is an essential component for any plumbing system requiring a reliable and durable connection. Designed to seamlessly integrate into your existing pipework, it allows for the efficient diversion or combination of fluid flow. Its robust construction...
    $18.09
    $20.08
    $18.09
    (-10%)
  • BARBED TEE 1-1/8" MPN-TEE-118-DP

    BARBED TEE 1-1/8" MPN-TEE-118-DP SKU: DM-6400288
    MPN: TEE-118-DP

    $5.69
    $6.32
    $5.69
    (-10%)
    BARBED TEE 1-1/8" The BARBED TEE 1-1/8" is a fundamental component for creating branching connections in fluid transfer systems, particularly where flexible tubing is utilized. This fitting allows for a secure and reliable "T" configuration, enabling the diversion or combination of fluid flow with...
    $5.69
    $6.32
    $5.69
    (-10%)
  • ADAPTER 1-1/8"TO FM1"NPT MPN-57

    ADAPTER 1-1/8"TO FM1"NPT MPN-57 SKU: DM-582800
    MPN: 57

    $14.59
    $16.19
    $14.59
    (-10%)
    ADAPTER 1-1/8"TO FM1"NPT This essential plumbing component, the ADAPTER 1-1/8" TO FM1" NPT, is designed to facilitate seamless connections within pump systems and various fluid transfer applications. Its robust construction ensures reliable performance, making it a trusted choice for professionals and DIY enthusiasts alike....
    $14.59
    $16.19
    $14.59
    (-10%)
  • BARB STD/ FLOW 0.75" NPT/ 0.75" HS MPN-PTH-0750

    BARB STD/ FLOW 0.75" NPT/ 0.75" HS MPN-PTH-0750 SKU: DM-542046
    MPN: PTH-0750

    $10.69
    $11.87
    $10.69
    (-10%)
    BARB STD/ FLOW 0.75" NPT/ 0.75" HS Brand: Gross Mech Laboratories Experience superior fluid control with the Gross Mech Laboratories 0.75" NPT flow barb fitting. Engineered for reliability and performance, this fitting is designed to create secure connections for tubing in a wide array...
    $10.69
    $11.87
    $10.69
    (-10%)
  • 3/8" 90 ST. ELL- BRASS MPN-44-162

    3/8" 90 ST. ELL- BRASS MPN-44-162 SKU: DM-467262
    MPN: 44-162

    $19.69
    $21.86
    $19.69
    (-10%)
    3/8" 90 ST. ELL- BRASS Enhance your plumbing installations with this robust 3/8" 90-degree brass street elbow. Designed for precision and longevity, this fitting offers a reliable solution for directing fluid flow at a right angle. Its compact design and durable brass construction make...
    $19.69
    $21.86
    $19.69
    (-10%)
  • 1/2" 90 ELBOW- BRASS MPN-44-103

    1/2" 90 ELBOW- BRASS MPN-44-103 SKU: DM-467111
    MPN: 44-103

    $19.69
    $21.86
    $19.69
    (-10%)
    1/2" 90 ELBOW- BRASS Ensure secure and leak-free transitions in your plumbing systems with this high-quality 1/2" 90-degree brass elbow. Designed for durability and ease of use, this fitting is an essential component for a wide range of plumbing applications. Its precise manufacturing guarantees...
    $19.69
    $21.86
    $19.69
    (-10%)
  • 3/4X2 BRASS NIPPLE MPN-40-082

    3/4X2 BRASS NIPPLE MPN-40-082 SKU: DM-466842
    MPN: 40-082

    $19.69
    $21.86
    $19.69
    (-10%)
    3/4X2 BRASS NIPPLE The 3/4X2 BRASS NIPPLE, with MFG number 40-082, is a fundamental component in various plumbing and fluid transfer systems. This fitting serves as a crucial connector, allowing for the extension or joining of pipes and hoses with its threaded ends. Crafted...
    $19.69
    $21.86
    $19.69
    (-10%)
  • THRU HULL DOUBLE END MPN-722511

    THRU HULL DOUBLE END MPN-722511 SKU: DM-2350059
    MPN: 3878-3

    $16.59
    $18.41
    $16.59
    (-10%)
    THRU HULL DOUBLE END The THRU HULL DOUBLE END fitting, identified by MFG number 3878-3, is a vital component for robust marine plumbing systems. This fitting is designed to facilitate connections through a boat's hull, allowing for secure water intake and discharge points for...
    $16.59
    $18.41
    $16.59
    (-10%)
  • THRU-HULL WHT 3/4
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    THRU-HULL WHT 3/4 SKU: DM-7001406

    $7.19
    $7.98
    $7.19
    (-10%)
    THRU-HULL WHT 3/4 Enhance your marine sanitation system with the THRU-HULL WHT 3/4". This essential component ensures reliable water flow and secure hull integration for various marine applications. Designed for durability and performance, it's a crucial part of any well-maintained vessel. Key Features Robust...
    $7.19
    $7.98
    $7.19
    (-10%)
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  • DECK PLATE SCREW DOWN 5 5/8" BLK MPN-SDP-1-DP

    DECK PLATE SCREW DOWN 5 5/8" BLK MPN-SDP-1-DP SKU: DM-6400274
    MPN: SDP-1-DP

    $9.99
    $11.09
    $9.99
    (-10%)
    DECK PLATE SCREW DOWN 5 5/8" BLK Brand: T-H Marine Supplies LLC-Huntsville Enhance your vessel's functionality with the T-H Marine screw-down deck plate, measuring 5 5/8 inches in black. This robust access plate is designed for marine environments, offering a secure and reliable way...
    $9.99
    $11.09
    $9.99
    (-10%)
  • 1" PLUG- BRASS MPN-44-655

    1" PLUG- BRASS MPN-44-655 SKU: DM-467642
    MPN: 44-655

    $20.39
    $22.63
    $20.39
    (-10%)
    1" PLUG- BRASS Secure your plumbing lines with the robust 1" brass plug, an essential component for sealing pipe openings. Crafted from durable brass, this plug offers excellent corrosion resistance and a reliable seal, ensuring the integrity of your water systems. It's designed for...
    $20.39
    $22.63
    $20.39
    (-10%)
  • 1"TO3/4" RED. BUSHING MPN-44-513

    1"TO3/4" RED. BUSHING MPN-44-513 SKU: DM-467565
    MPN: 44-513

    $21.19
    $23.52
    $21.19
    (-10%)
    1"TO3/4" RED. BUSHING Upgrade your plumbing system with this essential 1" to 3/4" reducing bushing, designed for seamless transitions between different pipe sizes. This fitting ensures a secure and leak-free connection, making it an indispensable component for various pump and sanitation applications. Its robust...
    $21.19
    $23.52
    $21.19
    (-10%)

Best Marine Bilge Pumps for Reliable Boat Sanitation and Safety

Keep your boat safe and dry with high-quality marine bilge pumps designed for both small and large vessels. Our automatic bilge pumps and submersible bilge pumps efficiently remove excess water from your hull, protecting your boat sanitation system and ensuring smooth sailing. Featuring high-output bilge pumps with float switches, these pumps are ideal for saltwater and freshwater use. Upgrade your marine safety today with marine bilge pump replacement parts and boat pump accessories for long-lasting reliability.

Durable Ballast Pumps for Fishing Boats and Yachts

Maintain optimal stability with our marine ballast pumps and heavy-duty ballast pumps for boats of all sizes. Designed for saltwater-resistant use, these electric ballast pumps ensure smooth water transfer and reliable ballast management. Perfect for yachts, fishing boats, and offshore vessels, these pumps come with replacement pump parts and marine plumbing accessories for convenient installation and maintenance. Trust our pumps for high-capacity ballast control during your marine adventures.

Complete Boat Engine Cooling Pumps for Inboard and Outboard Engines

Protect your engine with premium boat engine cooling pumps and marine engine water pumps designed for inboard and outboard engines. These saltwater engine cooling pumps prevent overheating, improve engine performance, and extend the life of your vessel. Combine them with marine plumbing fittings and hose kits for a complete, reliable cooling system. Upgrade your boat engine plumbing today for safer and more efficient trips.

Marine Hose and Plumbing Fittings for Boats

Ensure smooth water flow with high-quality marine hoses, reinforced boat plumbing hoses, and fuel & water hoses for boats. Pair them with stainless steel marine fittings, hose connectors, and marine plumbing adapters for a complete system. Our products support both bilge pump and ballast pump installations, helping maintain optimal boat sanitation and plumbing performance.

Commercial-Grade Marine Pumps for Yachts and Large Boats

Optimize water circulation with marine commercial pumps and heavy-duty boat water pumps ideal for large yachts and commercial vessels. These marine deck wash pumps and utility pumps are built to last in saltwater conditions, providing reliable service for boat sanitation and maintenance tasks. Complete kits include marine plumbing accessories for fast installation and worry-free operation.

Marine Blowers and Heaters for Boat Cabins

Maintain comfort aboard with marine blower fans, boat heater units, and marine cabin heaters. Perfect for ventilating cabins or providing heat in colder waters, these systems integrate seamlessly with boat plumbing accessories and marine hoses. Upgrade your marine cabin experience with durable blower and heater systems designed for reliability and performance.

Marine Plumbing Accessories for Easy Maintenance and Repairs

Keep your boat’s plumbing in top shape with marine plumbing accessories, replacement pump parts, and marine plumbing repair kits. From pipe fittings to pump mounts, these accessories ensure smooth installation and maintenance of bilge pumps, ballast pumps, and engine cooling systems. Buy premium accessories for reliable boat sanitation and long-term performance.

Heavy-Duty Bilge and Ballast Pump Replacement Kits

Upgrade your marine bilge pumps and ballast pumps with our complete replacement kits. These kits include marine plumbing hoses, fittings, and pump accessories designed for easy installation and maximum reliability. Ideal for saltwater boats, fishing vessels, and yachts, they ensure your boat sanitation system works efficiently every trip.

Boat Hose and Fittings Sets for Efficient Plumbing Systems

Maintain smooth water circulation on your boat with our marine hose and fittings sets. Designed for bilge pumps, ballast pumps, and engine cooling pumps, these kits include marine-grade hoses, connectors, and stainless steel fittings. Perfect for new installations or upgrades, they improve boat sanitation and enhance overall marine plumbing performance.

Complete Marine Plumbing Solutions for Boats

Get everything you need for marine plumbing and boat sanitation in one place. Our complete solutions include bilge pumps, ballast pumps, engine cooling pumps, marine hoses, fittings, and accessories. Designed for both freshwater and saltwater boats, these products ensure reliable performance, ease of maintenance, and safe boating operations.

Frequently Asked Questions

Find answers to common questions below

  • The best marine bilge pump for saltwater boats is an automatic or submersible pump with high-output performance and corrosion-resistant construction. These pumps ensure safe water removal from your hull, maintain boat sanitation, and prevent water accumulation even in heavy marine conditions.

  • Choose a ballast pump based on your boat’s size, water capacity, and usage. Heavy-duty, electric, and saltwater-resistant pumps are ideal for fishing boats. Look for reliable marine ballast pumps with accessories like hoses and fittings for seamless installation and long-term performance.

  • Marine plumbing accessories include hoses, fittings, connectors, and replacement parts for bilge, ballast, and engine cooling pumps. They ensure smooth water flow, efficient boat sanitation, and easy maintenance, keeping your marine plumbing system safe and reliable.

  • Ballast pumps manage water levels in tanks or compartments, balancing your boat during fishing or offshore trips. Heavy-duty marine ballast pumps provide smooth water transfer, ensuring stability and better handling, especially in rough seas.

  • Engine cooling pumps circulate water to prevent engine overheating. Marine engine water pumps ensure efficient cooling, prolong engine life, and are designed to work with marine hoses and fittings for safe and reliable operation.

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