---
product_id: 72481773
title: "Flamco Contra Flex 12 Litre Expansion Vessel for Heating Systems"
brand: "flamco"
price: "A$267"
currency: AUD
in_stock: true
reviews_count: 1
category: "Flamco"
url: https://www.desertcart.com.au/products/72481773-flamco-contra-flex-12-litre-expansion-vessel-for-heating-systems
store_origin: AU
region: Australia
---

# Durable epoxy powder coating Flexible butyl diaphragm High-strength steel build Flamco Contra Flex 12 Litre Expansion Vessel for Heating Systems

**Brand:** flamco
**Price:** A$267
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your heating system with Flamco’s powerhouse expansion vessel! 🔴

## Quick Answers

- **What is this?** Flamco Contra Flex 12 Litre Expansion Vessel for Heating Systems by flamco
- **How much does it cost?** A$267 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/72481773-flamco-contra-flex-12-litre-expansion-vessel-for-heating-systems)

## Best For

- flamco enthusiasts

## Why This Product

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

## Key Features

- • **Smart Diaphragm Flexibility:** Butyl diaphragm with rolling action supports glycol antifreeze up to 50%, adapting seamlessly to your system’s needs.
- • **Damage-Proof Air Valve Design:** Sunk nitrogen air valve with protective cap and coverplate prevents accidental damage, ensuring long-term reliability.
- • **Vibrant Protection, Zero Compromise:** Gleaming red epoxy powder coating (RAL 3002) offers superior corrosion resistance and a sleek finish that stands out.
- • **Built to Last, Engineered to Perform:** Top-grade steel with heavy-duty galvanised clampring ensures unmatched durability under high pressure.
- • **Effortless Installation & Connection:** Uncoated threaded 3/4" connection guarantees hassle-free, secure fitting every time.

## Overview

The Flamco Contra Flex 12 Litre Expansion Vessel is a robust, high-pressure heating system accessory crafted from premium steel with a corrosion-resistant red epoxy finish. Featuring a flexible butyl diaphragm compatible with glycol antifreeze and a protected nitrogen air valve, it ensures reliable performance and easy installation for modern heating setups.

## Description

Contra-Flex Heating Expansion Vessel 12 Litre FCST 012 For use under high pressure. Top-quality high strength steel, with a gleaming red (RAL 3002) epoxy powder coating – perfect protection and finish. Clampring of heavy-duty thermally-galvanised steel (sendzimir). Flexible butyl diaphragms with rolling action are suitable for use with glycol based anti freeze addition up to 50%. The nitrogen airvalve is sunk and cannot be damaged due to the cap and extra protective plastic beige coverplate. Uncoated threaded system connection, ensuring problem free connecting. Pre Charge Pressure: 0.5Bar Max Working Pressure: 3Bar Connection 3/4" Height: 309mm Diameter: 286mm

Review: Working well. - Working as well as can be. Seems to be of good quality, which means it is pretty good value too.

## Features

- Flamco 12 Litre Expansion Vessel For Heating Systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GRQW2R0 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 216,228 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,061 in Central Heating System Accessories |
| Customer Reviews | 4.8 4.8 out of 5 stars (7) |
| Date First Available | 22 Nov. 2013 |
| Manufacturer | Flamco |

## Images

![Flamco Contra Flex 12 Litre Expansion Vessel for Heating Systems - Image 1](https://m.media-amazon.com/images/I/71zIv8R6FzL.jpg)
![Flamco Contra Flex 12 Litre Expansion Vessel for Heating Systems - Image 2](https://m.media-amazon.com/images/I/61aLVMGY1GL.jpg)
![Flamco Contra Flex 12 Litre Expansion Vessel for Heating Systems - Image 3](https://m.media-amazon.com/images/I/71W0WWM8VXL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Working well.
*by G***Y on 18 January 2026*

Working as well as can be. Seems to be of good quality, which means it is pretty good value too.

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**Shop now:** [https://www.desertcart.com.au/products/72481773-flamco-contra-flex-12-litre-expansion-vessel-for-heating-systems](https://www.desertcart.com.au/products/72481773-flamco-contra-flex-12-litre-expansion-vessel-for-heating-systems)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-16*