---
product_id: 172896589
title: "SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified"
brand: "seaflo"
price: "€ 325.57"
currency: EUR
in_stock: true
reviews_count: 11
category: "Seaflo"
url: https://www.desertcart.hr/products/172896589-seaflo-33-series-water-pump-and-accumulator-tank-system-12v
store_origin: HR
region: Croatia
---

# 12V DC power for versatile off-grid use 3.0 GPM flow rate supports multiple fixtures Ultra-quiet operation for peaceful environments SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified

**Brand:** seaflo
**Price:** € 325.57
**Availability:** ✅ In Stock

## Summary

> 💧 Power your off-grid lifestyle with quiet, reliable water pressure!

## Quick Answers

- **What is this?** SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified by seaflo
- **How much does it cost?** € 325.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/172896589-seaflo-33-series-water-pump-and-accumulator-tank-system-12v)

## 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 Mastery:** Delivers 3.0 GPM at 45 PSI, perfect for boats, RVs, and tiny homes
- • **Plug & Play Installation:** Pre-assembled with flexible mounting options for hassle-free setup
- • **Whisper-Quiet Water Flow:** Heavy-duty motor design minimizes noise for a serene water experience
- • **Steady Pressure, Less Wear:** 0.2-gallon accumulator tank reduces pump cycling for longer life
- • **Built to Brave the Elements:** EPDM valves & Santoprene diaphragm ensure corrosion resistance and durability

## Overview

The SEAFLO 33-Series Water Pump and Accumulator Tank System is a robust 12V DC diaphragm pump delivering 3.0 GPM at 45 PSI, equipped with a 0.2-gallon accumulator tank to reduce cycling and extend pump life. Designed for marine, RV, and off-grid applications, it features corrosion-resistant EPDM valves and a Santoprene diaphragm for durability, ultra-quiet operation, and easy installation with versatile mounting options. Certified safe for potable water and backed by a 4-year warranty, it’s the go-to solution for steady, reliable water pressure in demanding environments.

## Description

desertcart.com : SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified : Sports & Outdoors

Review: Great flow and pressure, easy to set up - I've been using this pump for a week to irrigate my garden with reclaimed rainwater. It is easy to mount and connect because of the included hardware and mounting holes in the baseplate. It comes with everything you need to get started, is relatively quiet, includes a good warranty (that I haven't tested), and works well in my application. Great flowrate and pressure.
Review: Awesome combo! So far so good! - So far so good! Replaced a shurflo pump that diaphragm replacement didn’t solve. This was easy to connect and saved me space. I like the filter and the little pressure tank. It’s super quiet compared to shurflo. Have only used it twice for about 5 minutes each and needed to buy a 3/4 to 1/2 hose adapter for my purposes. Highly recommend.

## Features

- [ SPECIFICATIONS ] Model: SFWSK1-030-045-002 | Voltage: 12V DC | Open Flow: 3.0 GPM (11.3 LPM) | Tank Volume: 0.2 Gallon (0.75 L) | Pressure Off: 45 PSI (3.1 BAR) | Pressure On: 35 PSI (2.4 BAR) | Priming Capability: Self-priming up to 6 feet (1.8 m) suction lift | Max Draw: 11.0A | Ports: 1/2" MNPT | Material: EPDM valves / Santoprene diaphragm
- [ REDUCES CYCLING WITH ACCUMULATOR TANK ] The 0.2-gallon accumulator tank minimizes pump cycling, ensuring steady water pressure, quieter operation, and longer pump life by reducing wear and tear on internal components.
- [ POWERFUL PERFORMANCE FOR MULTIPLE FIXTURES ] With a 3.0 GPM flow rate and 45 PSI shut-off pressure, this pump is capable of simultaneously supplying water to up to three fixtures, making it perfect for boats, RVs, cabins, and tiny homes.
- [ DURABLE CONSTRUCTION FOR LONGEVITY ] Built with EPDM valves and a Santoprene diaphragm, this system withstands harsh conditions, providing corrosion resistance and consistent performance in marine, RV, and off-grid environments.
- [ EASY INSTALLATION & VERSATILE MOUNTING ] The system comes pre-assembled and is ready for installation, with horizontal or vertical mounting options for effortless setup in new or existing water systems.
- [ ULTRA-QUIET OPERATION ] Engineered for silent performance, the heavy-duty corrosion-resistant motor and precision design reduce noise, creating a smooth and quiet water pressure experience.
- [ SAFE FOR DRINKING WATER APPLICATIONS ] Constructed with materials that meet potable water safety standards, this system is ideal for drinking water systems in RVs, boats, tiny homes, and off-grid setups.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081544YH8 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #40,571 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Boat Water Pressure Pumps |
| Brand | SEAFLO |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (288) |
| Date First Available | February 19, 2017 |
| Global Trade Identification Number | 00810039490020 |
| Included Components | 51F09 Fitting |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 5.95 pounds |
| Item model number | SFWSK1-030-045-002 |
| Manufacturer | SEAFLO |
| Material | Polypropylene (PP) |
| Maximum Flow Rate | 3 Gallons Per Minute |
| Part Number | SFWSK1-030-045-002 |
| Power Source | 12V DC |
| Product Dimensions | 14.57"L x 10.24"W x 5.75"H |
| Size | 12V - 3.0 GPM |
| Style | Diaphragm Pump |
| UPC | 793945656622 810039490020 |
| Voltage | 11.99 Volts |
| Warranty Description | 4-Year Warranty |

## Product Details

- **Brand:** SEAFLO
- **Color:** Black
- **Global Trade Identification Number:** 00810039490020
- **Item Weight:** 6 Pounds
- **Material:** Polypropylene (PP)
- **Maximum Flow Rate:** 3 Gallons Per Minute
- **Power Source:** 12V DC
- **Product Dimensions:** 14.57"L x 10.24"W x 5.75"H
- **Style:** Diaphragm Pump
- **Voltage:** 11.99 Volts

## Images

![SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified - Image 1](https://m.media-amazon.com/images/I/71YJ6uyObFL.jpg)

## Questions & Answers

**Q: Does this product come with the accumulator tank and all the fittings, filter as shown in the photos?**
A: Yes it does, it did for me.

**Q: What size tube and fittings do i need for this system?**
A: 1/2 inch

**Q: Can this handle 24vdc?**
A: Typical rule of thumb is plus or minus 10% on any voltage, AC or DC and from 12 volts to 240 volts plus. So that being said the 12 volt DC pump should operate safely with a power (voltage) source of 10.5 to 13.5 volts DC, so you 24 volts DC would MOST CERTAINLY cause serious damage to the pump motor. Insco Electric  makes it Buck and Boost transformer for less than $10.00 that would be a safe and inexpensive fix, or you could use a Diode, witch would be more difficult to incorporate one into a safe enclosure and power connection. Good Luck

**Q: Is there a version of this that runs on regular 110?**
A: Yes, you can get 110 volt pumps with accumulator to do the same thing on 110 power.  Here is an example on Amazon:

https://www.amazon.com/SEAFLO-Water-Pump-Accumulator-System/dp/B07QN8D18H/ref=sr_1_fkmr4_1?crid=261IX59XP5HYV&keywords=SeaFlo+Marine+Water+Pump+110+V+AC+45+PSI+3.0+GPM+23.5+oz+125+psi+Accumulator&qid=1685481599&s=sporting-goods&sprefix=seaflo+marine+water+pump+110+v+ac+45+psi+3.0+gpm+23.5+oz+125+psi+accumulator%2Csporting%2C76&sr=1-1-fkmr4

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great flow and pressure, easy to set up
*by J***R on June 10, 2025*

I've been using this pump for a week to irrigate my garden with reclaimed rainwater. It is easy to mount and connect because of the included hardware and mounting holes in the baseplate. It comes with everything you need to get started, is relatively quiet, includes a good warranty (that I haven't tested), and works well in my application. Great flowrate and pressure.

### ⭐⭐⭐⭐⭐ Awesome combo! So far so good!
*by A***R on August 29, 2025*

So far so good! Replaced a shurflo pump that diaphragm replacement didn’t solve. This was easy to connect and saved me space. I like the filter and the little pressure tank. It’s super quiet compared to shurflo. Have only used it twice for about 5 minutes each and needed to buy a 3/4 to 1/2 hose adapter for my purposes. Highly recommend.

### ⭐⭐⭐⭐⭐ Great product
*by J***S on November 27, 2025*

Works awesome in my tiny home. Shower pressure is perfect. Very energy efficient

## Frequently Bought Together

- SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified
- SHURFLO (255-313) 1/2" Twist-On Pipe Strainer
- Camco Flexible Camper/RV Drain | Designed for Campers w/Single Sink and No Holding Tanks | Includes 25” of ¾-Inch ID Hose | Crafted of Heavy-Duty Chemical-Resilient Polymer (37420)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-21*