DuraVent 30' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit
The DuraVent 30' DuraFlex 304 Stainless Steel Basic Kit is a premium chimney liner kit engineered for efficient masonry chimney relining in residential and commercial heating systems. Featuring a 30-foot flexible 304 stainless steel chimney liner, this kit is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, and oil-fired heating equipment with minimal chimney offsets. Its lightweight, flexible construction simplifies installation while delivering dependable corrosion resistance and long-lasting venting performance. The DuraFlex 304 system is UL 1777 and ULC S635 listed, ensuring trusted safety, durability, and code-compliant performance.
Designed for professional chimney restoration and venting upgrades, the DuraFlex 304 Basic Kit promotes smooth flue gas flow while protecting masonry chimneys from heat, moisture, and corrosive byproducts. This 30-foot stainless steel chimney liner kit is an excellent solution for fireplace inserts, furnaces, boilers, and oil heating systems, providing reliable draft performance and extended service life. Whether replacing an aging chimney liner or upgrading an existing venting system, DuraVent DuraFlex 304 delivers installation flexibility, professional-grade quality, and dependable chimney performance.
Features
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DuraVent 30' DuraFlex 304 Stainless Steel Basic Kit: Complete 30-foot flexible chimney liner kit designed for professional masonry chimney relining and reliable vent system installations.
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Premium 304 Stainless Steel Construction: Manufactured from 304 stainless steel for superior corrosion resistance, strength, and long-lasting chimney vent performance.
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30-Foot Flexible Chimney Liner: Includes a 30-foot stainless steel flex pipe that is ideal for taller chimney installations and restoration projects.
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Available in 3" to 8" Diameters: Offered in 3", 4", 5", 6", 7", and 8" diameters to fit a wide range of wood stoves, fireplaces, fireplace inserts, furnaces, boilers, and oil heating appliances.
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Multiple Flex Length Options: Available in 15', 20', 25', 30', and 35' lengths to accommodate various chimney heights and installation requirements.
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Designed for Multiple Fuel Applications: Compatible with solid fuel, non-condensing gas, and oil-fired appliances, providing versatile chimney liner performance.
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Ideal for Chimney Relining Projects: Restores aging masonry chimneys, improves draft efficiency, and enhances the overall performance of venting systems.
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Flexible for Easier Installation: The flexible stainless steel chimney liner easily adapts to chimneys with minimal offsets, reducing installation time and complexity.
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UL Listed Chimney Liner System: Part of the trusted DuraVent DuraFlex 304 product line, UL 1777 and ULC S635 listed for safe, code-compliant chimney relining.
Specifications
| Model |
Size |
Flex Length |
| 3DF304-30K |
3" I.D |
30 ft. |
| 4DF304-30K |
4" I.D |
30 ft. |
| 5DF304-30K |
5" I.D |
30 ft. |
| 55DF304-30K |
5.5" I.D |
30 ft. |
| 6DF304-30K |
6" I.D |
30 ft. |
| 7DF304-30K |
7" I.D |
30 ft. |
| 8DF304-30K |
8" I.D |
30 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 |
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