---
product_id: 18826112
title: "Flexcon Industries PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon"
brand: "flexcon industries"
price: "€ 433.34"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/18826112-flexcon-industries-ph5-flex2pro-thermal-expansion-tank-2-1-gallon
store_origin: HR
region: Croatia
---

# 2.1 Gallon capacity Stainless steel nipple prevents corrosion 100% butyl diaphragm for water-air separation Flexcon Industries PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon

**Brand:** flexcon industries
**Price:** € 433.34
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your water system flawless and corrosion-free with PH5 FLEX2PRO!

## Quick Answers

- **What is this?** Flexcon Industries PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon by flexcon industries
- **How much does it cost?** € 433.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/18826112-flexcon-industries-ph5-flex2pro-thermal-expansion-tank-2-1-gallon)

## Best For

- flexcon industries enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Efficient:** 2.1-gallon capacity fits seamlessly into your system without bulk, perfect for modern home setups.
- • **Optimal Pressure Control:** Maintains safe water heating system pressure with a reliable butyl rubber diaphragm and plastic liner separation.
- • **Corrosion-Resistant Build:** Stainless steel nipple and appliance-quality paint ensure long-lasting durability against rust and wear.
- • **Frustration-Free Packaging:** Certified easy-to-open packaging means you’re up and running faster, no hassle included.
- • **Certified Quality Assurance:** Backed by comprehensive testing and a one-year warranty for peace of mind and dependable performance.

## Overview

The PH5 FLEX2PRO Thermal Expansion Tank by Flexcon Industries offers a 2.1-gallon capacity with a 100% butyl diaphragm and plastic liner to separate system water from air precharge. Featuring a corrosion-resistant stainless steel nipple and appliance-quality paint finish, it ensures durability and optimal pressure control in domestic water heating systems. Certified frustration-free packaging and a one-year warranty make it a reliable, hassle-free upgrade for your home.

## Description

Product Description               These potable water expansion tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tanks air precharge. The system has a stainless steel sleeve to prevent corrosion, something no other manufacturer offers. And, the tanks are finished with appliance-quality paint to help prevent external corrosion. On top of all of this, every PH tank is comprehensively tested and backed by Flexcon..                  From the Manufacturer               Flexcon PH Series potable water expansion tanks are designed to maintain safe pressures in a domestic water heating system that utilizes a backflow preventer or check valve. PH tanks feature a butyl rubber diaphragm and plastic liner to separate the system water from the tanks air pre-charge. The system connection has a stainless steel nipple to prevent corrosion. An appliance quality paint finish helps to prevent external corrosion. Every PH tank is comprehensively tested. 3/4-Inch MNPT connection.

## Features

- PH tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tank’s air precharge
- The system connection has a stainless steel nipple to prevent corrosion, something so other manufacturer offers
- Tanks are finished with appliance quality paint which helps prevent external corrosion
- Volume: 2.1 Gallons

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Flexcon Industries |
| Part Number | PH5 |
| Item Weight | 5.06 pounds |
| Product Dimensions | 8.5 x 8.4 x 13.5 inches |
| Item model number | PH5 |
| Is Discontinued By Manufacturer | No |
| Size | 2.1 Gallon |
| Color | White |
| Thickness | 1 Inches |
| Item Package Quantity | 1 |
| Certification | certified frustration-free |
| Included Components | Product & Instructions Guide |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | One-year warranty |

## Images

![Flexcon Industries PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon - Image 1](https://m.media-amazon.com/images/I/612YDMkNAVL.jpg)

## Available Options

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

## Frequently Bought Together

- Flexcon Industries PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon
- HoldRite QuickStrap Universal Expansion Tank Water Heater Wall Mounting Bracket, Stainless Steel, QS-U
- MEASUREMAN 0-200 PSI Water Pressure Gauge, 2-1/2'' Dial, Hose bib Pressure Gauge, Home Water Pressure Tester, Durable 3/4” Hose Thread, Water Pressure Gauge for Home

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**Shop now:** [https://www.desertcart.hr/products/18826112-flexcon-industries-ph5-flex2pro-thermal-expansion-tank-2-1-gallon](https://www.desertcart.hr/products/18826112-flexcon-industries-ph5-flex2pro-thermal-expansion-tank-2-1-gallon)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-07*