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Fast Delivery Duravent | Pipe Length Duraflex 304 Stainless Steel 20' Flex Tee Kit - Beat The Rush [TnGyuW1i]

$57.99 $185.99 -69%

Introducing the DuraVent 20' Flex Pipe Length DuraFlex 304 Stainless Steel Tee Kit – your gateway to a top-tier venting solution! When it comes to venting systems, DuraVent reigns supreme, boasting a wide range of meticulously engineered products tha

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Fast Delivery Duravent | Pipe Length Duraflex 304 Stainless Steel 20' Flex Tee Kit - Beat The Rush [TnGyuW1i]

Introducing the DuraVent 20' Flex Pipe Length DuraFlex 304 Stainless Steel Tee Kit – your gateway to a top-tier venting solution! When it comes to venting systems, DuraVent reigns supreme, boasting a wide range of meticulously engineered products that have solidified their status as industry leaders. With a steadfast commitment to innovation, safety, and professionalism, DuraVent has consistently delivered premium solutions tailored to the HVAC and Hearth markets.

Crafted from the finest 304 and 316 stainless steel, the DuraFlex 304 Stainless Steel Tee Kit is both lightweight and economical. It shines brightest when you need minimal offsets in your chimney. Designed to excel with wood burning, non-condensing gas, and oil-fired appliances, this kit offers a versatile solution for your venting needs. For applications demanding greater corrosion resistance, such as coal-fired appliances, we recommend the DuraFlex 316 variant. Rest assured, both DuraFlex 304SS and 316SS meet the rigorous standards of UL 1777 and ULC S635, ensuring safety and reliability.

Customization is at the heart of the DuraFlex experience. Tailor the flex length to your specific requirements, with custom lengths available (minimum 10' length). Looking for 9"-12" diameters? DuraFlex Pro and DuraFlex SW have you covered, even when ordered in custom lengths. Complement your 9"-12" flex systems with Ventinox components for optimal performance.

Benefits

  1. Durability: Crafted from premium 304 and 316 stainless steel, this kit is built to withstand the test of time, ensuring longevity and reliability.
  2. Versatility: Suitable for wood burning, non-condensing gas, and oil-fired appliances, making it a versatile choice for various heating systems.
  3. Customization: Tailor the kit to your exact requirements, thanks to the option for custom lengths.
  4. Corrosion Resistance: DuraFlex 316SS variant recommended for applications where superior corrosion resistance is essential.
  5. Safety Assurance: UL 1777 and ULC S635 certifications guarantee that this kit meets stringent safety standards.

Specifications

Model Size Flex Length
3DF304-20KT 3" I.D 20 ft.
4DF304-20KT 4" I.D 20 ft.
5DF304-20KT 5" I.D 20 ft.
55DF304-20KT 5.5" I.D 20 ft.
6DF304-20KT 6" I.D 20 ft.
7DF304-20KT 7" I.D 20 ft.
8DF304-20KT 8" I.D 20 ft.
Materials 304 Stainless Steel
Construction Single-Wall
Clearance 0” clearance for gas, oil, and pellet applications.
Clearance 1” clearance to masonry for wood-burning
Listings Listed to UL 1777 and ULC S635 (MH45609).
Warranty Limited-lifetime warranty

Downloads

About the Manufacturer

Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting.The company’s research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro.

What Our Customers Say

February 5, 2026

Absolutely no complaints!

The quality is amazing and the product is super effective.

- Braison I..

February 5, 2026

Absolutely no complaints!

This product is a brilliant choice. I'm very happy with my purchase.

- Curtis U..

February 5, 2026

Absolutely no complaints!

The functionality is seamless and the aesthetics are on point.

- Chloe B..

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