---
product_id: 27699967
title: "2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2\" Female NPT"
brand: "pro water parts"
price: "€ 221.48"
currency: EUR
in_stock: true
reviews_count: 9
category: "Pro Water Parts"
url: https://www.desertcart.gr/products/27699967-2-gallon-accumulator-expansion-tank-with-wall-mount-bracket-1
store_origin: GR
region: Greece
---

# Pre-Pressurized 30 PSI Air 1/2" Female NPT Connection 2 Gallon Capacity 2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT

**Brand:** pro water parts
**Price:** € 221.48
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of pressure surges with the pro-grade expansion tank that means business!

## Quick Answers

- **What is this?** 2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT by pro water parts
- **How much does it cost?** € 221.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/27699967-2-gallon-accumulator-expansion-tank-with-wall-mount-bracket-1)

## Best For

- pro water parts enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable plastic and stainless steel construction ensures long-term reliability.
- • **Secure & Ready:** Includes custom wall mount bracket for effortless, space-saving installation.
- • **Compact Powerhouse:** 2 Gallon capacity perfectly sized to handle thermal expansion without bulk.
- • **Pressure Perfected:** Handles up to 130 PSI max liquid pressure, exceeding typical residential demands.
- • **Quality You Can Trust:** Anodized, double-capped Schrader valve for superior protection and leak prevention.

## Overview

This 2 Gallon Accumulator Expansion Tank by Pro Water Parts is engineered for residential water heaters, absorbing thermal expansion in gas, oil, or electric systems. Featuring a 1/2" Female NPT connection, pre-pressurized air at 30 PSI, and a max liquid pressure rating of 130 PSI, it comes with a custom wall mount bracket for easy installation. Constructed from durable plastic and stainless steel, it offers reliable, long-lasting performance with premium features like an anodized, double-capped Schrader valve for enhanced protection.

## Description

Product description 2 Gallon Tank Specs

Review: Working great - Tank appears to be well constructed and installed and working properly. One caution, if you’re going to hard pipe to the half inch pipe size water connection be sure to use the backup nut so you don’t bend the tank shell.
Review: One of the best tanks on desertcart...I've looked - This is a rare thing, it is made with quality in mind. Even the shrader valve is anodized, capped and then capped again with a plastic protector. Higher than average maximum pressure rating and removable mounting bracket. I used a 1/4" compression x 1/2"npt Swagelok fitting on the connection, but a $7-$10 brass fitting of the same specs would work. This fitting does not typically come with RO tanks. size- I used a 4 gallon tank before this and the size was excessive for me. This smaller tank is actually more expensive (kind of typical), but it is also MUCH higher quality than my previous tank. reliability - only in use for a week, will update if I have any problems.

## Features

- 2 Gallon 1/2" Female NPT
- Custom Wall Brackets Included
- Max Liquid Pressure: 130 PSI
- Pre-Pressurized Air: 30 PSI
- Applications: Used on gas, oil, or electric, direct-fired, residential water heater, and potable water storage applications to absorb the increased volume of water created by thermal expansion.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IRFW38W |
| Best Sellers Rank | #58,333 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #59 in Water Heaters |
| Brand | Pro Water Parts |
| Brand Name | Pro Water Parts |
| Capacity | 2 Gallons |
| Container Type | Tank |
| Customer Reviews | 4.7 out of 5 stars 321 Reviews |
| Included Components | Storage Tank, Wall mount bracket |
| Installation Type | Wall Mount |
| Item Dimensions L x W x H | 12"L x 9"W x 7"H |
| Item Weight | 5.3 Pounds |
| Manufacturer | Pro Water Parts |
| Material | Plastic, Stainless Steel |
| Material Type | Plastic, Stainless Steel |
| Model Name | 2 Gallon |
| Model Number | 1ET2G12F |
| Other Special Features of the Product | Electric |
| Part Number | 1ET2G12F |
| Power Source | Wind Powered,battery Powered |
| Product Dimensions | 12"L x 9"W x 7"H |
| Purification Method | Reverse Osmosis |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Electric |
| UPC | 035127293011 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Pro Water Parts
- **Capacity:** 2 Gallons
- **Installation Type:** Wall Mount
- **Item Weight:** 5.3 Pounds
- **Material:** Plastic, Stainless Steel
- **Package Information:** Tank
- **Power Source:** Wind Powered,battery Powered
- **Product Dimensions:** 12"L x 9"W x 7"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** Electric

## Images

![2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT - Image 1](https://m.media-amazon.com/images/I/61DxQCwPdLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Working great
*by J***. on January 30, 2026*

Tank appears to be well constructed and installed and working properly. One caution, if you’re going to hard pipe to the half inch pipe size water connection be sure to use the backup nut so you don’t bend the tank shell.

### ⭐⭐⭐⭐⭐ One of the best tanks on amazon...I've looked
*by T***Z on July 7, 2024*

This is a rare thing, it is made with quality in mind. Even the shrader valve is anodized, capped and then capped again with a plastic protector. Higher than average maximum pressure rating and removable mounting bracket. I used a 1/4" compression x 1/2"npt Swagelok fitting on the connection, but a $7-$10 brass fitting of the same specs would work. This fitting does not typically come with RO tanks. size- I used a 4 gallon tank before this and the size was excessive for me. This smaller tank is actually more expensive (kind of typical), but it is also MUCH higher quality than my previous tank. reliability - only in use for a week, will update if I have any problems.

### ⭐⭐⭐⭐⭐ Big positive difference.
*by J***D on July 4, 2024*

I recently purchased my first RV and was a bit surprised at the pump operation. It cycled continuously during use and pulsed the water. Not only is it loud and bad for the pump, it's just annoying overall. Basic plumbing makes it pretty shocking that this is set up without a pressure tank. I looked around and found this tank is about as big as I could fit in my fresh water tank area so I got it. I have a shurflo 4008-101-A65 pump which is pretty standard on a lot of RV's. Pump turns on at 38 lbs and shuts off at 55 so I inflated the bladder to 35 lbs as per the manufacturers instructions. Now the water system works like it should. Way quieter, smooth water flow and drastically reduced pump cycling. A huge upgrade for a very low price.

## Frequently Bought Together

- 2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT
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**Shop now:** [https://www.desertcart.gr/products/27699967-2-gallon-accumulator-expansion-tank-with-wall-mount-bracket-1](https://www.desertcart.gr/products/27699967-2-gallon-accumulator-expansion-tank-with-wall-mount-bracket-1)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-14*