---
product_id: 180441009
title: "2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4\" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty"
brand: "seaflo"
price: "1321 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/180441009-2-gallon-pre-pressurized-accumulator-expansion-tank-reduces-pump-cycling
store_origin: DK
region: Denmark
---

# 2 Gallon capacity for steady water supply 3/4" MNPT universal connection for easy install 87 PSI max pressure for durable performance 2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty

**Brand:** seaflo
**Price:** 1321 kr
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your water system game — smooth, silent, and built to last!

## Quick Answers

- **What is this?** 2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty by seaflo
- **How much does it cost?** 1321 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/180441009-2-gallon-pre-pressurized-accumulator-expansion-tank-reduces-pump-cycling)

## 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

- • **Plug & Play Setup:** Pre-pressurized with Schrader valve for quick, hassle-free installation and fine-tuning.
- • **Compact Space-Saver:** Slim profile fits perfectly in tight RV, boat, or cabin spaces without compromising performance.
- • **Pump Life Maximizer:** Reduces pump cycling to extend your system’s lifespan and save battery power.
- • **Smooth Flow Guarantee:** Absorbs pressure spikes and water hammer for whisper-quiet, consistent water delivery.
- • **Built Tough for Adventure:** Corrosion-resistant, high-pressure design built to withstand marine and off-grid environments.

## Overview

The SEAFLO 2 Gallon Pre-Pressurized Accumulator Tank is engineered to reduce pump cycling and pressure fluctuations, delivering consistent water flow with quiet operation. Rated for 87 PSI and featuring a universal 3/4" MNPT connection, its compact, corrosion-resistant design is ideal for RVs, boats, and off-grid systems. Pre-pressurized with an easy-access Schrader valve, it ensures quick installation and optimal efficiency, backed by a 4-year warranty for long-term reliability.

## Description

SEAFLO 2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty

## Features

- [ SPECIFICATIONS ]: Model: | Volume: 2 Gallon (8L) | Max Pressure: 87 PSI (6 Bar) | SFAT-087-021-01Connections: 3/4" MNPT | Valve Type: Schrader Air Valve (Bicycle Pump Compatible) | Dimensions: Compact Design | Warranty: 4-Year Limited
- [ REDUCES PUMP CYCLING FOR EXTENDED LIFESPAN ]: Significantly reduces frequent pump cycling, minimizing wear and tear on your water pump. This optimized operation enhances your pump’s lifespan, conserves battery power, and delivers steady, reliable performance for marine, RV, off-grid, and cabin water systems.
- [ CONSISTENT, SMOOTH WATER FLOW ]: Effectively absorbs pressure fluctuations and water hammer, providing steady, uninterrupted water flow to all fixtures. Enjoy consistent pressure and quieter operation in showers, sinks, and faucets in your boat, RV, or off-grid cabin.
- [ PRE-PRESSURIZED FOR QUICK & EASY SETUP ]: This tank arrives pre-pressurized, simplifying your installation process. Easily fine-tune internal air pressure using the integrated Schrader air valve, perfectly matching your system’s pump cut-in pressure to achieve optimal efficiency and reduced pump cycling.
- [ HIGH-PRESSURE DURABLE CONSTRUCTION ]: Designed to reliably withstand pressures up to 87 PSI (6 Bar), the accumulator tank features rugged construction with a protective corrosion-resistant coating, ideal for marine conditions, saltwater environments, and outdoor off-grid installations.
- [ UNIVERSAL INSTALLATION WITH 3/4" MNPT CONNECTION ]: Equipped with universal 3/4" MNPT inlet/outlet fitting for rapid, hassle-free integration into your existing plumbing system. Its compact, space-saving design allows for easy mounting in tight compartments aboard RVs, boats, or cabins.
- [ QUIET OPERATION WITH NOISE & VIBRATION REDUCTION ]: Dampens vibrations, eliminating disruptive pump noise and water hammer. Provides an ultra-quiet, stable operation, significantly enhancing your comfort and tranquility aboard boats, RVs, motorhomes, and in remote cabins.
- [ OPTIMIZES ENERGY EFFICIENCY IN OFF-GRID SYSTEMS ]: Reduces the frequency of pump activation, thereby conserving battery power, ideal for solar-powered setups, RVs, boats, and off-grid installations. Enhances overall system efficiency, reducing electricity consumption and maintenance.
- [ BUILT-IN SCHRADER VALVE FOR PRESSURE ADJUSTMENTS ]: Features an easy-access Schrader air valve at the top of the tank for quick and precise internal air pressure adjustments. Simply use a standard bicycle pump to adjust pressure, ensuring efficient, tailored performance and reduced cycling.
- [ 4-YEAR LIMITED WARRANTY ]: Backed confidently by SEAFLO’s industry-leading 4-Year Warranty, ensuring long-term durability, reliable performance, and complete satisfaction for your marine, RV, caravan, and off-grid water system applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SEAFLO |
| Color | Blue |
| Material | Polypropylene (PP), Stainless Steel |
| Style | 2 Gal (8 L) |
| Product Dimensions | 7.87"L x 7.87"W x 13"H |
| Power Source | Battery Powered |
| Item Weight | 4.4 Pounds |
| Manufacturer | SEAFLO |
| UPC | 793945657568 647336948387 |
| Part Number | SFAT-087-021-01 |
| Item Weight | 4.4 pounds |
| Item model number | SFAT-087-021-01 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** SEAFLO
- **Color:** Blue
- **Material:** Polypropylene (PP), Stainless Steel
- **Style:** 2 Gal (8 L)
- **Product Dimensions:** 7.87"L x 7.87"W x 13"H
- **Power Source:** Battery Powered
- **Item Weight:** 4.4 Pounds
- **Manufacturer:** SEAFLO
- **UPC:** 793945657568 647336948387

## Images

![2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty - Image 1](https://m.media-amazon.com/images/I/61Uk+5VvHHL.jpg)

## Available Options

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

## Frequently Bought Together

- SEAFLO 2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-07*