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SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch, Self-Priming, Built-in Bypass, High Flow | Ideal for RV, Marine, and Off-Grid Water Systems

4.9 (16) Write Review
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$119.99

$ 51 .99 $51.99

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About this item

  • ✔️ [ 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: 140°F (60°C) ✔️Warranty: 4-Year Limited Warranty
  • ✔️ [ INCLUDED COMPONENTS ]: ✔️SEAFLO 55-Series Diaphragm Pump ✔️Installation Instructions ✔️(2) 1/2" Barbed Hose Adaptors ✔️50 Mesh Inlet Strainer ✔️Smart Pressure Switch ✔️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 uses—like showering, washing, or dishwashing—but 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 pump’s 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 pump’s 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.


Product Description

SFDPA1-033-045-33

The SEAFLO 55-Series Diaphragm Pump is designed to meet the demanding needs of your water system, providing consistent and reliable performance in a wide range of applications, including RVs, boats, yachts, water purification systems, and more.

Premium Technical Specifications

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Robust Construction

Intermittent

the SEAFLO 55-Series ensures precise pressure control, stable performance, and reduced cycling,. Constructed with premium materials like Santoprene and EPDM, this pump is built to withstand the harsh conditions of marine and RV environments, offering long-lasting reliability.

Maximum Versatility

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High flow rate, robust suction power, and durable construction make it suitable for both freshwater and saltwater environments , The SEAFLO 55-Series delivers consistent and reliable performance across a wide range of applications.

Premium Product Features: Click Side Arrows to Explore!

Enjoy the convenience of self-priming with the SEAFLO 55-Series pump, which can achieve a suction lift of up to 9 feet. This powerful suction capability ensures that the pump can be mounted remotely from the water source, providing flexibility in installation options


Gianni M.
2025-09-05 11:57:43
High flow, easy to install, and much quieter than most of our other rv pumps. We have several of these around our ranch. Every once in a while we may have a pressure switch go bad, but we are an extreme use case and the company is great with the warranty claim to get a new switch.
Trex-HI
2025-08-30 11:14:52
The pump worked right out of the box. Great water flow/pressure. There is a pressure sensitive switch that automatically shuts off when not in use. I recently had a problem with the pump and the Seller promptly communicated and sent me a replacement since it was still under warranty! Such great service.
CR
2025-08-25 15:34:18
We used this pump on a well where we have no power and hooked it to a small battery. It worked great and is very quiet and allowed us to use the water without firing up the generator at camp.
levi r bennettbeavercase
2025-08-18 18:23:30
Easy to install, great price. Very quiet. Pumps enough water to run 8 sinks at a time. Does not overheat.
JR Fent
2025-07-25 16:17:49
We bought this as an upgrade in our RV/Coach. Since you can't adjust the pressure on this one - it's not good for my application. I would have never known the issues we'd have because of this.Problem: It shuts off frequently because it's reached max pressure. The issue is apparent in the shower. The pump surges and the water temp jumps from hot to cold and back.The Solution: adjusting the pumps max pressure setting. (which this pump does not allow for)Anyway - it's a solid pump outside of that.
James L.
2025-07-24 12:08:45
This pump is king
Clint Bouck
2025-07-14 14:24:58
I really like this product I bought it before and it always seems to do a great job. It’s quieter than my other RV pump and the pressure is just way better. Very happy with the product.
Manny
2025-06-24 16:51:16
I bought this pump to replace a pump on my 2004 VW Rialta RV. It uses a pump to drain the water from the shower basin. It has great suction power, but besides that the filter element is SO EASY to access and clean. Love it!
Gianni M.
2025-06-14 17:48:05
High flow, easy to install, and much quieter than most of our other rv pumps. We have several of these around our ranch. Every once in a while we may have a pressure switch go bad, but we are an extreme use case and the company is great with the warranty claim to get a new switch.
Trex-HI
2025-05-30 13:25:33
The pump worked right out of the box. Great water flow/pressure. There is a pressure sensitive switch that automatically shuts off when not in use. I recently had a problem with the pump and the Seller promptly communicated and sent me a replacement since it was still under warranty! Such great service.
CR
2025-04-05 12:01:08
We used this pump on a well where we have no power and hooked it to a small battery. It worked great and is very quiet and allowed us to use the water without firing up the generator at camp.
levi r bennettbeavercase
2025-04-03 11:47:05
Easy to install, great price. Very quiet. Pumps enough water to run 8 sinks at a time. Does not overheat.
JR Fent
2025-03-14 15:23:38
We bought this as an upgrade in our RV/Coach. Since you can't adjust the pressure on this one - it's not good for my application. I would have never known the issues we'd have because of this.Problem: It shuts off frequently because it's reached max pressure. The issue is apparent in the shower. The pump surges and the water temp jumps from hot to cold and back.The Solution: adjusting the pumps max pressure setting. (which this pump does not allow for)Anyway - it's a solid pump outside of that.
James L.
2025-02-28 15:14:07
This pump is king
Clint Bouck
2025-01-31 12:41:05
I really like this product I bought it before and it always seems to do a great job. It’s quieter than my other RV pump and the pressure is just way better. Very happy with the product.
Manny
2024-11-27 19:36:21
I bought this pump to replace a pump on my 2004 VW Rialta RV. It uses a pump to drain the water from the shower basin. It has great suction power, but besides that the filter element is SO EASY to access and clean. Love it!