If you aren’t someone who makes frequent purchases, selecting the best Best Salt Water Washdown Pump won’t be an easy chore for you. However, you shouldn’t be concerned because we have provided you with the most comprehensive list possible of the top Best Salt Water Washdown Pump. Have a look at the products on our list, and pick the ones that appeal to you the most.
We researched and tested Best Salt Water Washdown Pump in the market to get you this list. Our most recommended product is SEAFLO Best Salt Water Washdown Pump. Check out our picks for all of our favorites, and be sure to read our buying guide to get all the information you need to make the best choice!
Editor's Choice
SEAFLO 33 Series 12V DC RV/Camper/Boat/Off-Grid Fresh Water Pressure Pump –12V, 3.0 GPM, 45 PSI,
Premium Pick
80PSI 7.5 GPM Washdown Pump Kit - 12V Marine Self-Priming Water Pump with Pressure Switch,
Budget Pick
PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump - 12V 3.5 GPM 45 PSI High-Pressure Marine RV
Top 10 Best Salt Water Washdown Pump
We researched and compared the top products in the Best Salt Water Washdown Pump category to provide you with these recommendations.
1. SEAFLO 33 Series 12V DC RV/Camper/Boat/Off-Grid Fresh Water Pressure Pump –12V, 3.0 GPM, 45 PSI,
- [ SPECIFICATIONS ]: Model Number: SFDP1-030-045-33 | Voltage: 12V | Open Flow: 3.0 GPM (11.3 LPM) | Shut-Off Pressure: 45 PSI (3.1 BAR) | Priming Capabilities: 6 feet (1.8 meters) | Max Temperature: 140F (60C) | Ports: 1/2"-14 MNPT | Material: EPDM Valves / Santoprene Diaphragm.
- [ NSF UL CSA CERTIFIED FOR RV POTABLE WATER ]: Tested and certified to NSF/ANSI/CAN 61 & 372 (Potable Water Safety), NSF 24 (RV Plumbing), UL 778 (Motor-Operated Water Pumps), and CSA C22.2 No. 108 (Liquid Pumps). Safe for drinking water and compliant with RV and marine plumbing standards across North America.
- [ BACKED BY A 4-YEAR WARRANTY ]: Covered by SEAFLOs 4-Year Limited Warranty, this pump is built for long-term reliability and peace of mind. Designed for tough freshwater demands, its the perfect choice for RVs, boats, cabins, and off-grid living where consistent performance is critical.
- [ HIGH-PERFORMANCE 3-CHAMBER DIAPHRAGM DESIGN ]: The advanced three-chamber diaphragm provides reliable 3.0 GPM flow at 45 PSI for consistent water delivery in marine, RV, and off-grid systems. This design minimizes cycling, ensures steady pressure, and enhances durability. Ideal for applications requiring moderate pressure and smooth performance.
- [ #1 TRUSTED OEM PUMP BRAND BY THE RV INDUSTRY ]: SEAFLO is the #1 OEM pump brand used by leading RV manufacturers across the USA. The 33 Series is trusted as factory-installed equipment for Forest River, Thor, Grand Design, Rev Group, Brinkley RV, Winnebago, and more, proving its reliability and widespread adoption in RV water systems.
- [ SUPPLIES UP TO 4 FIXTURES SIMULTANEOUSLY ]: This pump is engineered to supply up to four water fixtures at the same time, making it ideal for cabins, boats, and RVs. Enjoy steady flow to sinks, showers, and toilets without pressure drop. A true on-demand system built to deliver consistent performance across multiple outlets.
- [ AUTOMATIC ADJUSTABLE PRESSURE SWITCH FUNCTIONALITY ]: Equipped with a built-in automatic pressure switch, the pump starts and stops based on water demand. Adjust the pressure value by turning the screw, pressure range is 17-60PSI. It activates when a faucet is opened and shuts off when closed, giving you a truly automated system. Ideal for hands-free use in RVs, boats, or any remote plumbing setup.
- [ ULTRA-QUIET VIBRATION DAMPENING MOUNT ]: Includes a noise-reducing rubber mounting base that minimizes vibration and noise during operation. Perfect for quiet environments like RV interiors and marine cabins, it ensures smooth, silent performance without disruptive sounds even under full load.
- [ SELF-PRIMING AND RUN DRY CAPABILITY ]: The pump features self-priming up to 6 feet and can run dry without damage, providing installation flexibility above tank level and added protection in intermittent-use systems. This capability prevents internal damage and makes it perfect for varying water system needs.
2. 80PSI 7.5 GPM Washdown Pump Kit - 12V Marine Self-Priming Water Pump with Pressure Switch,
- High-Performance Washdown Pump Kit: Equipped with a 12V pump delivering 7.5 gallons per minute (GPM) flow rate and 80 PSI pressure, the kit includes a 25-foot UV-resistant hose, quick-connect trigger nozzle, 1/2'' NPT connectors, and a seawater filter to prevent clogging. Ideal for cleaning boats, RVs, gardens, campers, and showers.
- Exceptional Performance and Reliable Design: Offers 6 feet of vertical suction lift and 80 PSI shut-off pressure, perfect for freshwater and saltwater cleaning tasks. Features an adjustable pressure switch and thermal overload protection to prevent overheating, automatically restarting when safe temperatures are restored.
- Quiet Operation and Durable Construction: Engineered with a 5-chamber diaphragm design and dual-bearing motor for low noise and vibration. The ABS-engineered plastic body, waterproof motor cover, and sealed pressure switch ensure dependable performance in tough conditions.
- Complete Accessories for Easy Installation: Comes with a high-efficiency pump, UV-protected coiled hose, quick-connect fittings, a high-pressure spray nozzle, and a universal filter. Simple to set up and operate, making it ideal for outdoor cleaning tasks.
- Versatile Applications: Designed for intermittent use, this 12V pump is suitable for cleaning boats, RVs, decks, fish tanks, and gardens. Perfect for washing anchor chains, beacon stations, and leisure decks, offering a comprehensive solution for a variety of cleaning needs.
3. PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump - 12V 3.5 GPM 45 PSI High-Pressure Marine RV
- GREAT PRODUCT
- Le mer vous sourit
- GREAT PRODUCTS
4. 7.5GPM 80PSI Washdown Pump Kit - 12V Marine Self-Priming RV Water Pump with Pressure Switch, RV
- 7.5GPM 80PSI High-Pressure Pump for Marine & RV UseExperience superior cleaning power with 80 PSI pressure and 7.5 GPM flow. This 12V water pump effortlessly removes stubborn salt, mud, and grime from boats, RVs, and decks saving you time and water
- 9.8ft Self-Priming & Stable 5-Chamber Diaphragm DesignWith industry-leading 9.8ft self-priming height, this RV water pump offers flexible installation. The 5-chamber diaphragm with check valve ensures smooth, pulse-free water flow no more shaking or efficiency loss
- 65dB Ultra-Quiet with Triple Protection SystemAt under 65dB, this camper water pump runs quieter than a refrigerator perfect for late-night cleaning. Its smart triple protection (overheat/overpressure/dry-run) prevents damage and extends motor life
- IP68 Waterproof & Wide Temp Range (5C~60C)Built with IP68 waterproof motor and wide temperature tolerance, this marine washdown pump performs reliably in saltwater, rain, or extreme heat/cold ideal for harsh outdoor environments
- Complete Pro Kit with Leak-Proof AccessoriesEverything included: 25ft UV-resistant hose*1, adjustable spary gun with quick connector*1, 50 mesh strainer*1, stainless steel clamp*2; 1/2" Hose Barb*2; 1/2" Hose Barb Elbow*1, 1/2'' MNPT*1, PTFE Sealant Tape*1, Brass Hose Fitting*1. This washdown pump kit installs in minutes with zero leak risk.
5. SEAFLO 33 Series Washdown Deck Wash Pump Kit - 12V DC, 3.0 GPM, 70 PSI, Heavy Duty Pressure Switch,
- [ SPECIFICATIONS ]: Model Number: SFWP1-030-070-33 Voltage: 12V DC Open Flow: 3.0 GPM (11.3 LPM) Shut-off Pressure: 70 PSI (4.8 BAR) Priming Capability: Self-priming up to 6 feet (1.8 m) suction lift Max Draw: 18.0 A Inlet/Outlet Size: 1/2"-14 MNPT Material: EPDM valves / Santoprene diaphragm
- [ HIGH-EFFICIENCY PUMP PERFORMANCE ]: Capable of delivering a powerful 3.0 GPM flow rate at 70 PSI, this pump ensures fast and effective cleaning, saving you time and effort.
- [ HEAVY-DUTY PRESSURE SWITCH ]: The built-in pressure switch automatically activates when the spray gun handle is squeezed and shuts off when released, offering precise control and protecting the pump from over-pressurization.
- [ DURABLE AND CORROSION-RESISTANT CONSTRUCTION ]: Built with EPDM valves, a Santoprene diaphragm, and ABS engineering plastics, this pump is designed to withstand harsh conditions in both freshwater and saltwater environments
- [ COMPLETE WASHDOWN KIT INCLUDED ]: Includes a heavy-duty pump, 25-foot UV-protected coiled hose, trigger spray nozzle, quick-connect fittings, 50 mesh inlet strainer, and two 1/2" barbed fittings for a complete cleaning solution.
- [ QUIET AND RELIABLE OPERATION ]: Rubber mounting feet reduce vibration and noise. Thermal overload protection automatically stops the motor during overheating and restarts once cooled for uninterrupted performance.
- [ EASY INSTALLATION AND VERSATILITY ]: Features industry-standard mounting and quick-connect fittings, making setup and maintenance simple and efficient. Suitable for a wide range of applications, from boats to RV decks.
- [ COMPATIBLE WITH FRESHWATER AND SALTWATER ]: Engineered for both freshwater and saltwater cleaning tasks, ensuring reliable operation across diverse environments.
- [ INDUSTRY-LEADING 4-YEAR WARRANTY ]: Backed by SEAFLOs trusted warranty, guaranteeing durability and long-term performance.
6. SEAFLO 55-Series Washdown Pump Kit - 12V DC, 5.5 GPM, 70 PSI, Self-Priming, Coiled Hose, Spray
- POWERFUL AND EFFICIENT WASHDOWN SYSTEM: Equipped with the SEAFLO 55-Series 12V DC diaphragm pump, delivering an impressive 5.5 GPM flow rate and 60 PSI pressure. Designed for heavy-duty cleaning tasks, this system is perfect for removing dirt, grime, and debris from boats, RVs, decks, and outdoor equipment.
- COMPLETE KIT FOR EASY INSTALLATION: Includes everything you need: SEAFLO 55-Series pump, coiled hose for convenient reach, high-pressure spray nozzle for targeted cleaning, quick connect fittings for easy setup, and an inline filter to protect the pump from debris. Simplify your cleaning routine with a fully equipped washdown system.
- SELF-PRIMING WITH ADJUSTABLE PRESSURE SWITCH: The self-priming pump allows for flexible installation, operating up to 6 feet of vertical lift. The adjustable pressure switch ensures consistent water flow and pressure to suit various cleaning needs, whether it's a light rinse or a heavy-duty wash.
- BUILT TO LAST IN TOUGH CONDITIONS: Constructed with durable materials like a Santoprene diaphragm and polypropylene housing, this pump handles both saltwater and freshwater. The system features thermal protection, run-dry capability, and a rugged design to withstand harsh marine and outdoor environments.
- QUIET OPERATION WITH VIBRATION CONTROL: Designed with a rubber mounting base to reduce vibration and minimize noise, ensuring a smoother and quieter operation. Ideal for applications where minimal noise is critical, such as on boats and RVs.
- VERSATILE APPLICATIONS FOR VARIOUS ENVIRONMENTS: Perfect for use in marine, RV, off-grid, and outdoor settings. Whether cleaning boats, decks, vehicles, or outdoor spaces, the SEAFLO 55-Series Washdown Kit provides reliable, powerful performance for all your cleaning needs. Backed by SEAFLOs industry-leading 4-year warranty for peace of mind.
7. 7.5 GPM 80 PSI Washdown Deck Wash Pump Kit, 12V Washdown Pump Kit with Strainer and Pressure Switch
- Powerful Performance12V washdown pump kit can immediately deliver up to 7.5 gallons (GPM) of water per minute at a stable pressure of 80 pounds per square inch (PSI), truly say good-bye to to low water pressure. This washdown deck wash pump is widely used in RVs, boats, yachts, agricultural irrigation, etc. It can provide strong water pressure anywhere you need it.
- Quiet OperationOur 12V washdown pump kit runs smoothly and quietly, without any noise, and will not disturb you in any scenario. Low power consumption, save your electricity, enjoy fast and quiet drainage in safety and convenience.
- Enclosed MotorThis 12V washdown pump kit adopts a closed motor coated with anti-corrosion paint, which is durable, corrosion-resistant, and can maintain excellent performance even under harsh conditions.Thermal overload protection ensures the safe operation of the water pump and avoids any danger.
- Easy to InstallOur 12V washdown pump kit includes a 7.5 GPM 80 PSI Washdown Pump, 25FT UV resistant hose, quick connect fittings, high-pressure nozzle, 1/2" NPT connector, and a seawater filter. The complete set of accessories makes installation easier and perfect for cleaning boats, RVs, decks, fish tanks, and gardens.
- Good ServiceWe will provide you with professional service and a 3-year warranty. If you have any questions about this washdown pump kit,please feel free to contact us and we can provide you with a free replacement.Our washdown pump kit has undergone strict factory testing, and there may be residual water inside, which is a normal phenomenon and can be used with confidence.
8. 7.5 GPM 80 PSI Washdown Deck Wash Pump Kit, 12V Washdown Pump Kit with Strainer and Pressure Switch
- Powerful Performance12V washdown pump kit can immediately deliver up to 7.5 gallons (GPM) of water per minute at a stable pressure of 80 pounds per square inch (PSI), truly say good-bye to to low water pressure. This washdown deck wash pump is widely used in RVs, boats, yachts, agricultural irrigation, etc. It can provide strong water pressure anywhere you need it.
- Quiet OperationOur 12V washdown pump kit runs smoothly and quietly, without any noise, and will not disturb you in any scenario. Low power consumption, save your electricity, enjoy fast and quiet drainage in safety and convenience.
- Enclosed MotorThis 12V washdown pump kit adopts a closed motor coated with anti-corrosion paint, which is durable, corrosion-resistant, and can maintain excellent performance even under harsh conditions.Thermal overload protection ensures the safe operation of the water pump and avoids any danger.
- Easy to InstallOur 12V washdown pump kit includes a 7.5 GPM 80 PSI Washdown Pump, 25FT UV resistant hose, quick connect fittings, high-pressure nozzle, 1/2" NPT connector, and a seawater filter. The complete set of accessories makes installation easier and perfect for cleaning boats, RVs, decks, fish tanks, and gardens.
- Good ServiceWe will provide you with professional service and a 3-year warranty. If you have any questions about this washdown pump kit,please feel free to contact us and we can provide you with a free replacement.Our washdown pump kit has undergone strict factory testing, and there may be residual water inside, which is a normal phenomenon and can be used with confidence.
9. SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch |
- Specifications: Model Number: SFDP1-055-060-55 Voltage: 12V DC Open Flow: 5.5 GPM (20.8 LPM) Shut-off Pressure: 60 PSI (4.2 BAR) Priming Capabilities: 9 FT (2.7 M) Suction Lift Max Draw: 17A Material: EPDM (Valves) / Santoprene (Diaphragm) Ports: 1/2"-14 MNPT Threaded Max Recommended Temperature: 140F (60C) Warranty: 4-Year Limited Warranty
- Included Components: SEAFLO 55-Series Diaphragm Pump Installation Instructions (2) 1/2" Barbed Hose Adaptors 50 Mesh Inlet Strainer 16 AWG, 9" (22.8 cm) Leads
- [ HIGH FLOW RATE WITH 5-CHAMBER DESIGN ] : The advanced 5-chamber diaphragm ensures a high flow rate of 5.5 GPM, making it capable of supplying water to up to six fixtures at once. This design not only supports various simultaneous water useslike showering, washing, or dishwashingbut also reduces pump cycling, delivering consistent water pressure. Whether used for marine, RV, or off-grid systems, this pump ensures dependable and continuous water flow.
- [ HEAVY-DUTY PRESSURE SWITCH WITH BUILT-IN BYPASS ]: The upgraded pressure switch offers precise pressure control and stable performance by automatically activating the pump when needed and stopping it once the desired pressure is reached. The built-in bypass mechanism minimizes rapid cycling by maintaining consistent pressure, allowing water to flow back from the outlet side to the inlet if necessary. This function extends the pumps lifespan and ensures a seamless water supply, making it particularly beneficial for systems with multiple water outlets.
- [ SMART PRESSURE SWITCH WITH LONG LIFETIME ]: The SEAFLO 55-Series features a reliable Smart Pressure Switch that activates the pump automatically when water is needed and stops it when the demand ceases. Built for endurance, it offers a lifetime of over 200,000 on/off cycles, ensuring consistent and long-lasting performance for various water systems. This non-adjustable switch provides optimal pressure control without manual adjustments.
- [ SELF-PRIMING & RUN DRY CAPABILITY ]: This pumps self-priming feature allows for a powerful suction lift of up to 9 feet, making it versatile for remote installations. This means the pump can be positioned above the water source, offering greater flexibility in setup without compromising performance. Additionally, the pump can run dry without damage, protecting the internal components during low-water conditions or accidental dry operation, making it a reliable solution for various water transfer tasks.
- [ QUIET & EFFICIENT OPERATION WITH NOISE REDUCTION ]: Engineered for quiet operation, the SEAFLO 55-Series pump functions at a noise level comparable to a ceiling fan (65 dB). The semi-rigid rubber mounting base reduces vibrations, significantly lowering noise levels and ensuring a peaceful environment. This makes it particularly suitable for indoor use, such as in RVs or boats, where minimal noise is preferred.
- [ DURABLE & CORROSION-RESISTANT MATERIALS ]: Built to withstand harsh marine and RV environments, the pump uses premium Santoprene for the diaphragm and EPDM for the valves. These materials offer excellent abrasion and corrosion resistance, making the pump suitable for both freshwater and saltwater applications. Its construction ensures durability and long-lasting reliability, even in high-moisture or corrosive conditions.
- [ VERSATILE APPLICATIONS FOR RVs, BOATS, AND OFF-GRID SYSTEMS ]: The SEAFLO 55-Series pump is designed to cater to diverse applications, including washdown systems, potable water supply, shower drains, and water purification systems. Its robust performance makes it a perfect fit for RVs, boats, yachts, and off-grid cabins. With its ability to handle both freshwater and saltwater, it serves as a versatile solution for various liquid transfer needs
- [ EFFICIENT HEAT DISSIPATION & LOW STARTING PRESSURE ]: The heavy-duty pressure switch is designed with efficient heat dissipation capabilities, ensuring that the pump can run continuously without overheating. It is also engineered to work with a low starting pressure, preventing unnecessary pump cycling and reducing wear and tear on the motor.
10. SEAFLO 42 Series On Demand Water Pressure Pump 12V 3.0 GPM 55PSI, with Bypass for Reduced Cycling,
- [ SPECIFICATIONS ]: Model SFDP1-030-055-42 | Voltage 12V | 3.0 GPM (11.3 LPM) | 55 PSI | Max Draw 7.0A | Self-Priming 6 ft | EPDM Valves | Santoprene Diaphragm | Ports 1/2"-14 MNPT | 4-Year Warranty
- [ 4-YEAR LIMITED WARRANTY ]: Backed by SEAFLOs industry-leading 4-Year Warranty, ensuring durability, confidence, and long-term protection for freshwater systems in marine, RV, and off-grid installations.
- [ NSF UL CSA CERTIFIED FOR POTABLE WATER ]: Fully certified to NSF/ANSI/CAN 61 & 372, NSF 24, UL 778, and CSA C22.2 No.108, ensuring compliance for safe potable water use in RV, marine, and off-grid pressurized water systems.
- [ HIGH-PERFORMANCE CONTINUOUS-DUTY OPERATION ]: Built for extended runtime, this pump delivers consistent 3.0 GPM flow and 55 PSI pressure, making it ideal for marine, RV, and off-grid systems that demand long-lasting reliability.
- [ SELF-PRIMING WITH RUN-DRY PROTECTION ]: Capable of self-priming up to 6 ft and safely running dry, the pump offers dependable performance during tank changes, low-water events, or installations requiring elevated mounting locations.
- [ INTERNAL BYPASS FOR SMOOTH QUIET FLOW ]: Integrated bypass technology reduces short cycling and pressure fluctuations, producing smoother water delivery and quieter overall operation in on-demand freshwater systems.
- [ DURABLE AND QUIET DESIGN ]: Santoprene diaphragm and EPDM valves provide long-term resistance to wear, while the rubber mounting base reduces vibration and noise for smoother, quieter operation in tight spaces.
- [ EASY INSTALLATION WITH STANDARD MOUNTING PATTERN ]: Features an industry-standard mount footprint and 1/2"-14 MNPT ports, allowing simple integration with common plumbing layouts in RVs, boats, and tiny home water systems.
- [ VERSATILE APPLICATIONS ACROSS MULTIPLE SYSTEMS ]: Ideal for pressurized water systems in RVs, boats, caravans, cabins, and agricultural setups, handling multiple fixtures with reliable performance and low maintenance needs.
Peter
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