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Thanksgiving Deal 4" Duraflexal 25' Aluminum Gas Chimney Liner - 4dfa-25 In Multiple Colors [b2f9RFHe]

$37.99 $121.99 -69%

4" DuraFlexAL 25' Aluminum Gas Chimney Liner Introducing the 4" DuraFlexAL 25' Aluminum Gas Chimney Liner, a reliable and efficient solution for all your venting needs. This versatile chimney liner is designed to enhance the safety and performance of

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4" DuraFlexAL 25' Aluminum Gas Chimney Liner

Introducing the 4" DuraFlexAL 25' Aluminum Gas Chimney Liner, a reliable and efficient solution for all your venting needs. This versatile chimney liner is designed to enhance the safety and performance of your gas appliances, providing a durable and cost-effective venting system for natural gas and liquid propane applications.

Key Product Features

The 4" DuraFlexAL 25' Aluminum Gas Chimney Liner is constructed with double wall construction for maximum heat resistance and durability. With an inner diameter of 4", it is compatible with a wide range of fuel types, including natural gas and liquid propane. This UL-listed liner ensures compliance with safety standards and comes with a limited lifetime warranty, offering peace of mind and long-lasting performance. Key features include:

  • Inner Diameter: 4"
  • Fuel Types Compatible With: Natural Gas, Liquid Propane
  • UL Listed: Yes
  • Length: 25'
  • Double Wall Construction
  • Limited Lifetime Warranty

Practical Applications and Benefits

The 4" DuraFlexAL 25' Aluminum Gas Chimney Liner is an ideal choice for relining masonry chimneys, ensuring safe and efficient venting for appliances such as natural gas fireplaces, gas-fired furnaces, boilers, water heaters, and wall or space heating applications. Its ability to protect masonry chimneys from the damaging effects of flue product condensation adds an extra layer of protection and longevity. This versatile product is suitable for both residential and commercial use, making it a perfect addition to any heating system. Experience the benefits of the DuraFlexAL liner, including:

  • Enhanced Safety: Compliant with safety standards and designed for reliable venting.
  • Longevity: Double wall construction and aluminum material for durability and heat resistance.
  • Economical Solution: Cost-effective venting system for a wide range of applications.

What Our Customers Say

January 2, 2026

Absolutely no complaints!

A very good and a very, very useful product.

- Juanita F..

January 2, 2026

Absolutely no complaints!

I am impressed. And it works so very well.

- Brenna D..

January 2, 2026

Absolutely no complaints!

Very satisfied with the product's whole performance.

- April L..

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