---
product_id: 654414015
title: "Zilmet in-Line Thermal Expansion"
brand: "zilmet"
price: "VT53681"
currency: VUV
in_stock: true
category: "Zilmet"
url: https://www.desertcart.vu/products/654414015-zilmet-in-line-thermal-expansion
store_origin: VU
region: Vanuatu
---

# 210°F max operating temp 150 PSIG max pressure rating Polypropylene liner stops corrosion Zilmet in-Line Thermal Expansion

**Brand:** zilmet
**Price:** VT53681
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your hot water flowing flawlessly — no leaks, no corrosion, just peace of mind! 🛠️

## Quick Answers

- **What is this?** Zilmet in-Line Thermal Expansion by zilmet
- **How much does it cost?** VT53681 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/654414015-zilmet-in-line-thermal-expansion)

## Best For

- zilmet enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** External baked epoxy-polyester coating delivers a sleek, appliance-grade finish that resists wear.
- • **Leak-Proof Assurance:** Protected pre-charge valve eliminates potential leak paths for worry-free performance.
- • **Versatile Installation:** Compact 2.1-gallon design fits perfectly with 40-50 gallon water heaters, install vertically or horizontally.
- • **Corrosion-Free Durability:** Exclusive polypropylene liner ensures your tank stays rust-free and reliable.
- • **Optimized Pressure Control:** Factory precharged at 40 PSIG with a max operating pressure of 150 PSIG to safeguard your plumbing system.

## Overview

The Zilmet in-Line Thermal Expansion Tank (ZEP5) is a 2.1-gallon carbon steel tank featuring an exclusive polypropylene liner to prevent internal corrosion. It supports a maximum operating temperature of 210°F and pressure up to 150 PSIG. Designed for use with 40-50 gallon hot water heaters, it comes factory precharged at 40 PSIG and includes a protected pre-charge valve to eliminate leaks. Its durable epoxy-polyester coating and flexible installation options make it a reliable upgrade for any modern plumbing system.

## Description

A Thermal Expansion Tank can be added to your hot water tank at any time. It does not need to be done when your are replacing an old tank. But if you are replacing a water heater, you should add a thermal expansion tank! A Thermal Expansion Tank for use on storage tank hot water heaters is typically a small carbon steel tank - usually either 2.1 gallons or 4.5 gallons. They are lined with a rubber membrane to help protect the tank from corrosion. They are designed to be installed on the cold water line. The ZEP5 can be installed vertically or horizontally (as long as it is fully supported independently from the piping). The ZEP5 is a 2.1 gallon tank and is perfect for use with hot water tanks from 40 - 50 gallons. The set point for this type of tank is 150°F. The ZEP5 comes with a factory pre-charge of 40 psi. This may need to be adjusted depending on the water pressure in your home. Brass plumbing fittings are recommended for installation as they will tend to last longer. The thermal expansion tank is typically installed on the cold water line.

## Features

- Exclusive polypropylene liner eliminates internal corrosion
- External baked epoxy-polyester coating provides a durable appliance like finish
- Protected pre charge valve eliminates potential leak path
- 150 PSIG max pressure rating
- Carbon Steel Shell
- Stainless Steel Connection
- Butyl fixed membrane
- Max operating pressure: 150 PSIG
- Operating temperature: 210°F
- Factory precharge: 40 PSIG

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C9PC3KPW |
| ASIN  | B0C9PC3KPW |
| Batteries Required? | No |
| Color | White |
| Date First Available | 15 August 2024 |
| Date First Available  | 15 August 2024 |
| Included components | Expansion Tank |
| Item Weight | 2.24 Kilograms |
| Item model number | ZEP5 |
| Item model number  | ZEP5 |
| Manufacturer | Zilmet |
| Manufacturer  | Zilmet |
| Material | Carbon Steel |
| Product Dimensions | 8.89 x 8.89 x 27.94 cm; 2.24 kg |
| Product Dimensions  | 8.89 x 8.89 x 27.94 cm; 2.24 kg |

## Images

![Zilmet in-Line Thermal Expansion - Image 1](https://m.media-amazon.com/images/I/31umM9pjWcL.jpg)
![Zilmet in-Line Thermal Expansion - Image 2](https://m.media-amazon.com/images/I/41LB3-XPmjL.jpg)
![Zilmet in-Line Thermal Expansion - Image 3](https://m.media-amazon.com/images/I/71Jtzsv2H6L.jpg)
![Zilmet in-Line Thermal Expansion - Image 4](https://m.media-amazon.com/images/I/71lMbedVChL.jpg)

## Frequently Bought Together

- in-Line Thermal Expansion
- HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass
- 3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass, 3/4 Inch Service Installation Valve for rheem,rinai,ecosmart,navien,noritz,takagi,bosch

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**Shop now:** [https://www.desertcart.vu/products/654414015-zilmet-in-line-thermal-expansion](https://www.desertcart.vu/products/654414015-zilmet-in-line-thermal-expansion)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-24*