Flexcon
0 ratings
2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5
genuine image
2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5
The 2.1-gallon inline thermal expansion tank is designed for maximum efficiency and durability.
2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5
Item #: 97946926

2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5

Item #: 97946926

AUD 94

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Sunday, July 19
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
The 2.1-gallon inline thermal expansion tank is designed for maximum efficiency and durability.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Compact Design
The 2.1-gallon capacity ensures efficient use in tight spaces, making it ideal for residential or commercial applications where installation space is limited.
Thermal Efficiency
This inline thermal type expansion tank effectively absorbs excess pressure and optimizes performance, extending the lifespan of your plumbing system and preventing costly repairs.
Versatile Compatibility
Designed to work seamlessly with various water heating systems, this expansion tank accommodates diverse setups, ensuring enhanced functionality for a wide range of users.

Product Details

Shop 2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5 online at a best price in Kiribati. B08R929T78
Item Weight3.5 lbs (1.59 kg)

Who Should Buy?

Suitable For
  • Residential Heating

    Ideal for homeowners with hydronic heating systems needing pressure stabilization and thermal expansion management.

  • Small Boilers

    Suitable for users with small boiler systems requiring additional liquid capacity to balance pressure variations.

  • DIY Enthusiasts

    Perfect for DIY home improvement projects involving hot water systems and thermal expansion assistance.

Not Suitable For
  • Large Systems

    Not suitable for large industrial systems requiring higher capacity expansion tanks for effective pressure management.

  • High Pressure Areas

    Should be avoided in areas where high-pressure variants are necessary to prevent system failure or damage.

  • Cooling Systems

    Not ideal for cooling applications due to its design and function focusing solely on heating systems.

Product Description

2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is an expansion tank and how does it work?

    Answer: An expansion tank is designed to absorb the excess pressure generated in a closed water heating system. As water heats, it expands, potentially leading to pressure spikes in the system. The expansion tank mitigates this by providing a space for the expanding water, helping to maintain a consistent pressure level. This is particularly beneficial in maintaining system health and efficiency, as it minimizes the risk of leaks or bursts caused by excessive pressure.
  • Question: What materials are used in the construction of the 2.1 gal. expansion tank?

    Answer: The 2.1 gal. expansion tank is typically made of durable steel, which offers resilience against high pressure and temperature variations. Inside, it features a diaphragm or bladder that separates the air charge from the water. This specific construction ensures that the expansion tank can withstand the fluctuations in pressure while preventing corrosion and prolonging its lifespan. When installed correctly, this tank can work effectively for a variety of heating systems, including hot water heaters and boilers.
  • Question: How do I install the 2.1 gal. expansion tank?

    Answer: Installation of the expansion tank generally involves connecting it to the water supply line, typically in the cold water feed to your water heater. It is essential to read the manufacturer's installation instructions for specific guidance. Proper installation ensures that the tank functions optimally—sealing any leaks and maintaining system balance. If you're inexperienced with plumbing, consulting a professional may be beneficial for proper integration into your existing setup.
  • Question: Can this tank be used with any type of heating system?

    Answer: Yes, the 2.1 gal. expansion tank is versatile and can be utilized in various types of heating systems, including conventional water heaters, tankless systems, and hydronic heating. Its inline and thermal design makes it suitable for a wide range of applications, helping manage pressure effectively in both residential and commercial setups. By choosing the right expansion tank, you can enhance the efficiency and longevity of your heating systems.
  • Question: How often should an expansion tank be checked or replaced?

    Answer: It's advisable to check your expansion tank annually, assessing for signs of corrosion or damage in the tank and examining the air pressure level in the diaphragm. If the tank appears damaged or if you notice frequent pressure fluctuations in your system, it may need replacement. While the lifespan of an expansion tank can vary, regular maintenance ensures optimal performance, preventing high repair costs and system failures down the line.
  • Question: What is the significance of the thermal type in this expansion tank?

    Answer: The thermal type of the expansion tank indicates it is designed to handle a wide range of temperatures efficiently. This feature is crucial for systems where water temperature can significantly fluctuate, as it ensures the tank can manage and accommodate expanding water without compromising system integrity. Such tanks are particularly beneficial in homes with basements or heating systems subject to high thermal loads.
  • Question: Is a 2.1 gal. expansion tank suitable for larger systems?

    Answer: While the 2.1 gal. expansion tank is optimized for smaller residential setups, it might be suitable for larger systems depending on their overall volume and pressure requirements. However, in larger systems, multiple tanks or a larger capacity tank may be necessary to effectively manage pressure fluctuations. It is essential to assess your system's specifications to choose an appropriately sized tank to ensure optimal performance.
  • Question: What are the benefits of using an inline expansion tank?

    Answer: Inline expansion tanks offer various advantages, including space-saving designs and the ability to integrate seamlessly within existing plumbing systems. This configuration can enhance system performance by allowing quick access for maintenance while also reducing installation complexity. Additionally, inline tanks effectively ensure consistent pressure in the system, which is critical for sustainable operation in both residential and commercial applications.
  • Question: Where can I buy a 2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5?

    Answer: You can buy the 2.1 gal. Expansion Tank, Inline, Thermal Type - PH 5 on Ubuy. Ubuy offers a wide selection of plumbing and heating supplies, making it easy to find the right expansion tank for your needs. Their user-friendly interface allows you to explore product specifications and customer reviews, ensuring you make an informed decision before your purchase.
  • Question: What is the recommended pressure for the 2.1 gal. expansion tank?

    Answer: Typically, an expansion tank should have an air pre-charge set at the same pressure as your system's cold water supply pressure, which is often set between 12-15 psi for most residential systems. Proper initial pressure is crucial, as it allows the tank to efficiently absorb excess water expansion during heating. Regular pressure checks ensure that the tank performs optimally and that your heating system operates efficiently.

Flexcon Pump Accessories Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.3/5 9,000 + reviews
Read reviews
MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

AUD 94

Order now and get it around Sunday, July 19

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Designed for maximum efficiency with 2.1-gallon capacity.
  • Inline thermal tank style ensures seamless integration.
  • Constructed from durable steel for long-lasting use.
  • Precharged at 40 PSI to enhance performance.
  • Max working pressure of 150 PSI meets high standards.
  • Durable diaphragm made from Butyl for reliability.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.