---
product_id: 577955458
title: "Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh"
brand: "seaflo"
price: "€ 437.49"
currency: EUR
in_stock: false
reviews_count: 5
category: "Seaflo"
url: https://www.desertcart.es/products/577955458-water-diaphragm-self-priming-pump-3-0-gallons-min-11
store_origin: ES
region: Spain
---

# 12V DC power 3.0 GPM flow rate 45 PSI pressure Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh

**Brand:** seaflo
**Price:** € 437.49
**Availability:** ❌ Out of Stock

## Summary

> 💧 Pump up your adventure with quiet, reliable flow!

## Quick Answers

- **What is this?** Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh by seaflo
- **How much does it cost?** € 437.49 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/577955458-water-diaphragm-self-priming-pump-3-0-gallons-min-11)

## 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

- • **Multi-Fixture Ready:** Supports up to 4 simultaneous water fixtures without pressure drop—ideal for busy RVs, boats, or cabins.
- • **Certified Safe for Drinking:** NSF, UL, and CSA certifications guarantee potable water safety, so you can hydrate with confidence anywhere.
- • **Quiet Powerhouse Performance:** Ultra-quiet vibration dampening mount ensures whisper-quiet operation—perfect for peaceful RV and marine environments.
- • **Effortless On-Demand Water Flow:** Automatic pressure switch activates only when you need it, delivering water seamlessly without manual intervention.
- • **Built to Last with 4-Year Warranty:** Durable EPDM valves and Santoprene diaphragm backed by a 4-year limited warranty for long-term reliability.

## Overview

The SEAFLO Water Diaphragm Self Priming Pump delivers a steady 3.0 GPM flow at 45 PSI using a robust 12V DC motor. Certified safe for potable water and engineered with a 3-chamber diaphragm design, it supports up to four fixtures simultaneously. Its automatic pressure switch and ultra-quiet vibration mount make it perfect for RV, marine, and off-grid freshwater systems. Backed by a 4-year warranty, this pump combines durability, safety, and convenience for modern mobile lifestyles.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Review: キャンパーの給水システムに使用。 以前つけていたDCポンプに比べて、力もあるし静音性も良い！ 一年近く使用しているが、耐久性に問題なし。
Review: 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.

## Features

- [ 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: 140°F (60°C) | 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 SEAFLO’s 4-Year Limited Warranty, this pump is built for long-term reliability and peace of mind. Designed for tough freshwater demands, it’s 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00P8BE6S8 |
| Brand | Seaflo |
| Colour | White, Black, Orange |
| Global Trade Identification Number | 00637776648008, 00647336944273, 00793945653393 |
| Included Components | (1) SEAFLO 33-Series Diaphragm Pump (1) Set of Instructions (2) 1/2" Barbed Hose Adaptors (1) 50 Mesh Inlet Strainer |
| Item Weight | 1 kg 910 g |
| Item model number | SFDP1-030-045-33 |
| Manufacturer | SEAFLO |
| Material | Metal |
| Maximum Flow Rate | 3 Gallons Per Minute |
| Maximum Lifting Height | 6 Feet |
| Net Quantity | 1.0 Count |
| Power Source | dc |
| Product Dimensions | 19.9L x 12.7W x 11.7H Centimeters |
| Style | Diaphragm |
| UPC | 793945653393 039923319654 647336944273 637776648008 |
| Voltage | 12 Volts (DC) |

## Product Details

- **Brand:** Seaflo
- **Colour:** White, Black, Orange
- **Item Weight:** 4.2 Pounds
- **Material:** Metal
- **Maximum Flow Rate:** 3 Gallons Per Minute
- **Maximum Lifting Height:** 6 Feet
- **Power Source:** dc
- **Product Dimensions:** 19.9L x 12.7W x 11.7H Centimeters
- **Style:** Diaphragm
- **Voltage:** 12 Volts (DC)

## Images

![Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh - Image 1](https://m.media-amazon.com/images/I/414IjuUzWuL.jpg)
![Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh - Image 2](https://m.media-amazon.com/images/I/418J2LMp-UL.jpg)
![Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh - Image 3](https://m.media-amazon.com/images/I/41mu4h0oPbL.jpg)
![Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh - Image 4](https://m.media-amazon.com/images/I/41t74DjBfIL.jpg)
![Water Diaphragm Self Priming Pump 3.0 Gallons/min (11.3 Lpm) 45 PSI New Rv/Marine 12 Volt Dc / 12 V Demand Fresh - Image 5](https://m.media-amazon.com/images/I/51KZwuptVML.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you adjust the "shut-off" pressure down from 45 PSI?**
A: Locate the allen screw on the pressure switch located on the front of the pump, use an allen key to turn it clockwise to increase pressure or counterclockwise to decrease pressure.

**Q: Can you hook up to 3/4 pex?**
A: The output is 1/2" MNPT. You would need a 1/2"FNPT to 3/4" Pex Fitting

**Q: could this pump, pump water up 6 feet**
A: Yes, this pump will both pull and push water up 6 feet.

**Q: Why will my pump make noise but not pump water. It has been dry for 5 days of travel. Now we are parked and it’s not working.**
A: 2 possible problems come to mind.   The pump is self priming, as long as there is water in the tank getting to the pump it should work.   There is a possibility that it was installed the wrong way, there is an intake opening and an output opening.   Check that, it could be the problem.  The pump could also be defective if there is water getting to it and it is installed correctly but still not working...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***N on 17 November 2025*

キャンパーの給水システムに使用。 以前つけていたDCポンプに比べて、力もあるし静音性も良い！ 一年近く使用しているが、耐久性に問題なし。

### ⭐⭐⭐⭐⭐ Review
*by M***N on 30 September 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.

### ⭐⭐⭐⭐⭐ Review
*by R***A on 22 April 2025*

Excelente bomba ya es la 4 que compro

## Frequently Bought Together

- 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
- ML7-12 - 12 VOLT 7.2 AH SLA BATTERY - Mighty Max Battery brand product, black

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-08*