DuraVent 35' Flex Pipe Length DuraFlex Pro Stainless Steel Basic Kit
The DuraVent 35' Flex Pipe Length DuraFlex Pro Stainless Steel Basic Kit is a premium flexible chimney liner system designed for superior strength, flexibility, and dependable masonry chimney relining. Featuring durable 316 stainless steel construction, DuraFlex Pro provides 20% more stainless steel per foot compared to many standard liners, delivering exceptional durability and corrosion resistance. Its extreme flexibility allows for smooth, problem-free installations in chimneys with multiple offsets, making it an ideal solution for wood stove liners, fireplace insert venting, and solid-fuel appliance applications. Available in 3-inch through 12-inch diameters, this stainless steel chimney liner is listed to UL 1777 and ULC S635 standards for trusted performance.
Engineered for professional chimney restoration and venting upgrades, the DuraFlex Pro Basic Kit helps improve chimney draft, flue gas flow, and heating appliance efficiency while protecting against heat, moisture, and corrosive combustion byproducts. This 35-foot flexible chimney liner kit provides a reliable, long-lasting solution for residential and commercial chimney relining projects. With its high-quality stainless steel design and proven DuraVent performance, it ensures safe, efficient, and code-compliant venting for demanding installations.
Features
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DuraVent DuraFlex Pro 35' Stainless Steel Chimney Liner Kit: Premium 35-foot flexible chimney liner system designed for professional masonry chimney relining, fireplace insert installations, and venting upgrades.
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High-Quality 316 Stainless Steel Construction: Built with durable 316 stainless steel for superior strength, flexibility, and long-lasting corrosion-resistant chimney liner performance.
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Available in Multiple Diameters: Offered in 3-inch to 8-inch diameters to provide a versatile solution for wood stove liners, fireplace inserts, and solid-fuel appliance venting systems.
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Multiple Flex Length Options: Available in 15’, 20’, 25’, 30’, and 35’ lengths to fit a wide range of chimney relining applications and installation requirements.
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Flexible Chimney Pipe Design: Engineered for easy routing through existing chimney structures, helping simplify chimney liner replacement and restoration projects.
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Ideal for Offset Chimney Installations: DuraFlex Pro flexibility supports installations with multiple offsets and complex chimney configurations.
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Improves Chimney Draft & Efficiency: Helps maintain proper flue gas flow, ventilation performance, and heating appliance efficiency.
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Professional Stainless Steel Chimney Liner Solution: Perfect for masonry chimney repair, fireplace insert venting, wood-burning stove installations, and stainless steel chimney systems.
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Durable & Long-Lasting Performance: Provides reliable protection against heat, moisture, combustion gases, and chimney deterioration.
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UL Listed Flexible Chimney Liner: Designed to meet UL 1777 and ULC S635 standards for safe and dependable chimney liner installations.
Specifications
| Model |
Size |
Flex Length |
| 3DFPRO-35K |
3" I.D |
35 ft. |
| 4DFPRO-35K |
4" I.D |
35 ft. |
| 5DFPRO-35K |
5" I.D |
35 ft. |
| 55DFPRO-35K |
5.5" I.D |
35 ft. |
| 6DFPRO-35K |
6" I.D |
35 ft. |
| 7DFPRO-35K |
7" I.D |
35 ft. |
| 8DFPRO-35K |
8" I.D |
35 ft. |
| Materials |
316 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 |
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