---
product_id: 126353527
title: "SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch | Self-Priming, Quiet Operation, 4-Year Warranty | Ideal for RV, Marine, and Off-Grid Water System"
brand: "seaflo"
price: "₩401069"
currency: KRW
in_stock: true
reviews_count: 8
category: "Seaflo"
url: https://www.desertcart.kr/products/126353527-seaflo-55-series-diaphragm-pump-12v-dc-5-5-gpm
store_origin: KR
region: South Korea
---

# 12V DC power 5.5 GPM high flow 60 PSI pressure control SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch | Self-Priming, Quiet Operation, 4-Year Warranty | Ideal for RV, Marine, and Off-Grid Water System

**Brand:** seaflo
**Price:** ₩401069
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game—quiet, smart, and unstoppable flow.

## Quick Answers

- **What is this?** SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch | Self-Priming, Quiet Operation, 4-Year Warranty | Ideal for RV, Marine, and Off-Grid Water System by seaflo
- **How much does it cost?** ₩401069 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/126353527-seaflo-55-series-diaphragm-pump-12v-dc-5-5-gpm)

## Best For

- seaflo enthusiasts

## Why This Product

- Trusted seaflo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Whisper-Quiet Operation:** Operates at noise levels comparable to a ceiling fan (65 dB) with vibration-dampening mounts for peaceful indoor use.
- • **Flexible Self-Priming Design:** 9 ft suction lift and run-dry protection enable versatile installation anywhere—perfect for off-grid and marine setups.
- • **Consistent High Flow Performance:** 5-chamber diaphragm delivers 5.5 GPM to supply up to 6 fixtures simultaneously—never run out of water when it counts.
- • **Smart Heavy-Duty Pressure Switch:** Automatically maintains steady 60 PSI pressure with built-in bypass to reduce cycling and extend pump life.
- • **Built to Last in Harsh Environments:** Premium Santoprene diaphragm and EPDM valves resist corrosion and abrasion for reliable freshwater and saltwater performance.

## Overview

The SEAFLO 55-Series Diaphragm Pump is a robust 12V DC water pump delivering 5.5 GPM at 60 PSI with a smart heavy-duty pressure switch and self-priming capability up to 9 feet. Engineered for quiet operation and durability with corrosion-resistant materials, it’s ideal for RVs, marine vessels, and off-grid water systems. Backed by a 4-year warranty, it ensures reliable, consistent water pressure for multiple fixtures with minimal noise and maintenance.

## Description

desertcart.com: SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch | Self-Priming, Quiet Operation, 4-Year Warranty | Ideal for RV, Marine, and Off-Grid Water System : Automotive

Review: So far appears to be a great value fresh pump. - Only 2 months in, so durability not evaluated yet. Overall whilst I haven't experienced any measure of longevity yet, the "fit, form and function" of this fresh pump seems to be quite the value for basic needs such as mine. Surely not the same total experience as a higher flow pump with multiple diaphragms and increased noise abatement, but for those who don't need such a premium experience (with quite dear costs) this pump is quite nice and presents much better value IMO. Bottom line: - Noise level: Not measured, but quite acceptable to me. With it mounted directly under the berth I *do* hear it throughout the boat, however at absolutely minimal volumes that I don't foresee waking anyone except the lightest sleeper. If the tank goes empty and it starts pushing air it will hammer a bit. Some day I'll break out the db meter and measure this. - On demand sensing works great - when I turn on the faucet, water is there and continues to be there. This is perhaps the most important aspect to creating an "at home" experience - no footswitches or pumps, not buttons, just a regular ole faucet. - No hammering or surging even with just a single diaphragm until water gets low - if it starts drawing air then it hammers. To be frank I like this as I don't have a gauge in my fresh tank, so this acts as my alert that water if very low. - While I have only two faucets, the flow is quite sufficient. Wash dishes, even rinse down cabin floor or countertop without any problem. - Same install as any other pump, quite easy particularly when combined with pex. I have to remind myself to take some photos / videos for everyone. I used this to replace a manual freshwater plumbing system in my sailboat and honestly I kind of hate the maritime industry, so when I saw an item that was more appropriately priced for it's design and manufacturing costs, I decided to give it a try. I'm very glad I did, this little guy so far is proving itself out very nicely. I've already recommended it to several rag haulers who are still pumping faucets.
Review: Amazingly quiet and effective pump for our RV - We have an older (1991) motorhome that still had its original water pump. Since we bought the RV when it was already 27 years old, we didn't think much about how noisy the old pump was when it ran and how much it vibrated all the pipes. It got so bad that it actually cracked a PEX connector in my plumbing from all the vibration. Fortunately we caught it before too much of a flood. That was the incentive to look for a better pump in hopes of getting one that would be quieter and not vibrate the whole RV when you flushed the toilet. After doing quite a bit of research and looking at reviews we chose the SeaFlo pump. It's a good name brand and had a reputation of being relatively quiet. We couldn't be happier with it. We installed it with a SeaFlo Accumulator tank (0.75 l) and after hooking it up and wiring it up I went ahead and turned it on. At first I thought it wasn't working because I didn't hear ANYTHING! However the water started coming out the faucet and when I got closer to it or put my hand on the pump it was clear it was in fact working, but was living up to its QUIET reputation. I highly recommend this pump. You could spend less on a cheap knockoff import unit, but seriously is it really worth saving a few dollars on something that probably won't last and may be rather noisy when you can get the best with SeaFlo. And no, I'm not paid by SeaFlo to do this review, I'm just incredibly impressed with the quality and want to share that.

## Features

- 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 ✔️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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SEAFLO |
| Color | Black |
| Material | Polypropylene (PP) |
| Power Source | 12V DC |
| Product Dimensions | 8.5"L x 5.75"W x 5.16"H |
| Style | 5.5 GPM - 60 PSI |

## Product Details

- **Brand:** SEAFLO
- **Color:** Black
- **Item Weight:** 6.1 Pounds
- **Material:** Polypropylene (PP)
- **Maximum Flow Rate:** 5.5 Gallons Per Minute
- **Maximum Lifting Height:** 9 Feet
- **Power Source:** 12V DC
- **Product Dimensions:** 8.5"L x 5.75"W x 5.16"H
- **Style:** 5.5 GPM - 60 PSI
- **Voltage:** 12 Volts (DC)

## Images

![SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch | Self-Priming, Quiet Operation, 4-Year Warranty | Ideal for RV, Marine, and Off-Grid Water System - Image 1](https://m.media-amazon.com/images/I/71S3VtoWTML.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Why does amazon list this as 55 series but everything on the box is showing 51 series? what it it?**
A: Company sent me a 51-series in a 55-series box

**Q: Will this hold up in salt water as a washdown pump, or does seaflow make a different product for saltwater use?**
A: if your going to use in salt water, flush it out with fresh water when done.

**Q: Will this pump hold up bleaching water??**
A: probably not as a chemical add pump. Should be fine with small concentration if you add bleach to holding tank.

**Q: Will this pump work with hot water?**
A: I would contact the manufacturer. A lot of pumps are rated to handle a certain range of water temperatures. Some pumps will use the water as a coolant, where others have high temp seals to deal with hot water.

## Customer Reviews

### ⭐⭐⭐⭐⭐ So far appears to be a great value fresh pump.
*by M***N on September 30, 2022*

Only 2 months in, so durability not evaluated yet. Overall whilst I haven't experienced any measure of longevity yet, the "fit, form and function" of this fresh pump seems to be quite the value for basic needs such as mine. Surely not the same total experience as a higher flow pump with multiple diaphragms and increased noise abatement, but for those who don't need such a premium experience (with quite dear costs) this pump is quite nice and presents much better value IMO. Bottom line: - Noise level: Not measured, but quite acceptable to me. With it mounted directly under the berth I *do* hear it throughout the boat, however at absolutely minimal volumes that I don't foresee waking anyone except the lightest sleeper. If the tank goes empty and it starts pushing air it will hammer a bit. Some day I'll break out the db meter and measure this. - On demand sensing works great - when I turn on the faucet, water is there and continues to be there. This is perhaps the most important aspect to creating an "at home" experience - no footswitches or pumps, not buttons, just a regular ole faucet. - No hammering or surging even with just a single diaphragm until water gets low - if it starts drawing air then it hammers. To be frank I like this as I don't have a gauge in my fresh tank, so this acts as my alert that water if very low. - While I have only two faucets, the flow is quite sufficient. Wash dishes, even rinse down cabin floor or countertop without any problem. - Same install as any other pump, quite easy particularly when combined with pex. I have to remind myself to take some photos / videos for everyone. I used this to replace a manual freshwater plumbing system in my sailboat and honestly I kind of hate the maritime industry, so when I saw an item that was more appropriately priced for it's design and manufacturing costs, I decided to give it a try. I'm very glad I did, this little guy so far is proving itself out very nicely. I've already recommended it to several rag haulers who are still pumping faucets.

### ⭐⭐⭐⭐⭐ Amazingly quiet and effective pump for our RV
*by R***S on March 12, 2025*

We have an older (1991) motorhome that still had its original water pump. Since we bought the RV when it was already 27 years old, we didn't think much about how noisy the old pump was when it ran and how much it vibrated all the pipes. It got so bad that it actually cracked a PEX connector in my plumbing from all the vibration. Fortunately we caught it before too much of a flood. That was the incentive to look for a better pump in hopes of getting one that would be quieter and not vibrate the whole RV when you flushed the toilet. After doing quite a bit of research and looking at reviews we chose the SeaFlo pump. It's a good name brand and had a reputation of being relatively quiet. We couldn't be happier with it. We installed it with a SeaFlo Accumulator tank (0.75 l) and after hooking it up and wiring it up I went ahead and turned it on. At first I thought it wasn't working because I didn't hear ANYTHING! However the water started coming out the faucet and when I got closer to it or put my hand on the pump it was clear it was in fact working, but was living up to its QUIET reputation. I highly recommend this pump. You could spend less on a cheap knockoff import unit, but seriously is it really worth saving a few dollars on something that probably won't last and may be rather noisy when you can get the best with SeaFlo. And no, I'm not paid by SeaFlo to do this review, I'm just incredibly impressed with the quality and want to share that.

### ⭐⭐⭐⭐⭐ BEST BUY EVER
*by B***9 on September 21, 2025*

1 Car Battery 1 Regular size hose 5/8 or 3/4 2 Hose iron Clumps or fasteners or whatever It works great, easy set up and it silent like it like a mini fan. The size fits anywhere, it looks pretty good and doesn't take up plenty of space. It last plenty long and it is durable I dropped it before I even used it for the first time. I thought that it would be the end of the world if it did not work, but it worked fine. The pressure is good i would get a few gallons in less than minutes. YES I WOULD BUY IT AGAIN.

## Frequently Bought Together

- SEAFLO 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with Heavy Duty Pressure Switch | Self-Priming, Quiet Operation, 4-Year Warranty | Ideal for RV, Marine, and Off-Grid Water System
- SEAFLO Accumulator Tank Water Pump Flow Control with Internal Bladder - 125 PSI, 23.5 oz (0.75 L) | Reduces Pump Cycling and Smooths Water Flow for Marine, RV, and Off-Grid Systems
- SEAFLO Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-07*