---
product_id: 683524306
title: "Sponsored Ad - ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems"
brand: "watts"
price: "277262 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/683524306-sponsored-ad-etx-90-15-gallon-non-potable-expansion-tank
store_origin: HU
region: Hungary
---

# 15-gallon capacity 3/4 inch MNPT connection Max pressure 75 psi Sponsored Ad - ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems

**Brand:** watts
**Price:** 277262 Ft
**Availability:** ✅ In Stock

## Summary

> 💡 Keep Your System Flowing Smoothly!

## Quick Answers

- **What is this?** Sponsored Ad - ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems by watts
- **How much does it cost?** 277262 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/683524306-sponsored-ad-etx-90-15-gallon-non-potable-expansion-tank)

## Best For

- watts enthusiasts

## Why This Product

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

## Key Features

- • **🏠 Versatile Application:** Ideal for both residential and commercial hydronic heating systems.
- • **🔋 Easy On-Site Charging:** Features a .302-32 inch charging valve for convenient maintenance.
- • **🛡️ Durable Construction:** Crafted from carbon steel with an epoxy finish for long-lasting durability.
- • **🔒 Reliable Pressure Control:** Maintains system pressure below relief valve settings for optimal performance.
- • **🔄 Efficient Thermal Expansion Management:** Pre-charged at 12 psi to effectively manage hot water expansion.

## Overview

The Watts ETX-90 is a robust 15-gallon non-potable expansion tank designed for closed-loop hydronic heating systems. It effectively controls thermal expansion and maintains system pressure, ensuring longevity and reliability. Made from durable carbon steel with an epoxy finish, it features easy installation and maintenance options, making it suitable for both residential and commercial applications.

## Description

Sponsored Ad - ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems

## Features

- This non-potable water expansion tank is for closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief sett of the relief valve
- The carbon steel tank is pre-charged at 12 psi, has a 15 gallon volume, and features a durable expansion membrane preventing minimizes loss of the air change and ensures long and trouble-free life for the system
- Made of carbon steel with epoxy finish, mounts to supply piping, with 3/4 inch MNPT system connection and .302-32 inch charging valve connection for on-site charging of the tank
- Maximum pressure 75 psi and can be used in residential or commercial hydronic heating systems
- Use in tandem with your hot water heater to absorb increased water volume ensuring long and trouble-free life for the system

## Product Details

- **Brand:** Watts
- **Color:** Gray
- **Material:** Carbon Steel
- **Capacity:** 15 Gallons
- **Item Weight:** 3 Pounds

## Images

![Sponsored Ad - ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems - Image 1](https://m.media-amazon.com/images/I/51M2dRskEbL.jpg)

## Available Options

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

## Frequently Bought Together

- Watts ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems
- Taco 400-4 1/8-Inch-NPT Float Air Hy-Vent
- Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030

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**Shop now:** [https://www.desertcart.hu/products/683524306-sponsored-ad-etx-90-15-gallon-non-potable-expansion-tank](https://www.desertcart.hu/products/683524306-sponsored-ad-etx-90-15-gallon-non-potable-expansion-tank)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-03*