DuraVent 30' Flex Pipe Length DuraFlex 316 Stainless Steel Basic Kit
The DuraVent 30' DuraFlex 316 Stainless Steel Basic Kit is a complete flexible chimney liner system engineered for safe and efficient masonry chimney relining. Featuring premium 316 stainless steel construction, this 30-foot chimney liner kit delivers excellent corrosion resistance for solid-fuel appliances, wood stoves, fireplace inserts, non-condensing gas appliances, oil-fired heating systems, and coal-burning applications. Its flexible design allows easier installation through chimneys with minimal offsets while maintaining optimal flue gas flow, chimney draft, and appliance performance. The DuraFlex 316 Basic Kit is UL 1777 and ULC S635 listed for dependable and code-compliant venting solutions.
Designed for durability and long-term reliability, the DuraFlex 316 stainless steel chimney liner kit helps protect masonry chimneys from heat, moisture, and corrosive combustion byproducts. Ideal for fireplace insert installations, chimney restoration, and venting upgrades, this 30-foot flexible chimney liner provides a professional solution for improving safety, efficiency, and airflow in residential and commercial heating applications. Backed by DuraVent’s industry-leading engineering, it ensures dependable chimney performance in demanding environments.
Features
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DuraVent 30' DuraFlex 316 Stainless Steel Basic Kit: Complete 30-foot flexible chimney liner kit designed for professional masonry chimney relining, fireplace insert installations, and chimney restoration projects.
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Premium 316 Stainless Steel Chimney Liner: Manufactured with durable 316 stainless steel alloy for superior strength, extended service life, and enhanced resistance to corrosion.
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Multiple Diameter Options Available: Offered in 3" to 8" diameters to fit a wide range of wood stoves, fireplace inserts, solid-fuel appliances, gas systems, and oil heating applications.
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Flexible Chimney Liner Installation: Designed to navigate chimney pathways and minimal offsets while supporting easy installation and reliable flue gas venting performance.
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Available Flex Length Sizes: Offered in 15’, 20’, 25’, 30’, and 35’ lengths to accommodate various chimney heights and installation requirements.
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Ideal for Chimney Relining Applications: Provides a dependable stainless steel chimney liner solution for masonry chimney upgrades, repairs, and appliance conversions.
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Enhanced Venting Efficiency: Helps maintain proper chimney draft, airflow, and appliance efficiency by providing a durable passage for exhaust gases.
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Compatible with Multiple Fuel Types: Suitable for solid fuel, non-condensing gas, and oil appliances, including wood-burning systems and fireplace inserts.
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UL Listed DuraFlex Series: Engineered to meet UL 1777 and ULC S635 standards for safe and reliable chimney liner installations.
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Professional Chimney Liner Kit: A trusted DuraVent DuraFlex 316 venting system designed for residential and commercial chimney relining applications.
Specifications
| Model |
Size |
Flex Length |
| 3DF316-30K |
3" I.D |
30 ft. |
| 4DF316-30K |
4" I.D |
30 ft. |
| 5DF316-30K |
5" I.D |
30 ft. |
| 55DF316-30K |
5.5" I.D |
30 ft. |
| 6DF316-30K |
6" I.D |
30 ft. |
| 7DF316-30K |
7" I.D |
30 ft. |
| 8DF316-30K |
8" I.D |
30 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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