DuraVent 30' Flex Pipe Length DuraFlex 304 Stainless Steel
The DuraVent 30' DuraFlex 304 Stainless Steel Flex Pipe is a high-quality flexible chimney liner engineered for dependable masonry chimney relining in residential and commercial heating systems. Constructed from durable 304 stainless steel, this 30-foot chimney liner is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, and oil-fired heating equipment where minimal chimney offsets are present. Its lightweight, flexible design simplifies installation while providing outstanding corrosion resistance and reliable venting performance. The DuraFlex 304 system is UL 1777 and ULC S635 listed, ensuring trusted safety and code-compliant installation.
Designed to maximize venting efficiency, the DuraFlex 304 stainless steel chimney liner promotes smooth flue gas flow while protecting masonry chimneys from heat, moisture, and corrosive flue byproducts. This 30-foot flexible chimney liner is an excellent choice for fireplace inserts, furnaces, boilers, and oil heating systems, delivering consistent draft performance and long service life. Whether restoring an older chimney or upgrading an existing venting system, DuraVent DuraFlex 304 provides professional-grade durability, installation flexibility, and dependable chimney performance.
Features
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DuraVent 30' DuraFlex 304 Stainless Steel Flex Pipe: Premium 30-foot flexible chimney liner designed for dependable masonry chimney relining and long-lasting vent system performance.
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Durable 304 Stainless Steel Construction: Manufactured from 304 stainless steel to provide superior corrosion resistance, strength, and reliable performance in demanding chimney applications.
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Compatible with Multiple Fuel Types: Designed for use with solid fuel, non-condensing gas, and oil-fired appliances, making it a versatile solution for residential and commercial heating systems.
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Flexible Chimney Liner Design: The flexible stainless steel chimney liner easily navigates masonry chimneys with minimal offsets, simplifying installation while maintaining efficient flue gas flow.
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Improves Chimney Draft & Efficiency: Helps restore aging chimney systems, improve draft performance, and protect masonry flues from heat, moisture, and corrosive combustion byproducts.
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Ideal for Wood, Gas & Oil Heating Systems: Suitable for wood stoves, fireplaces, fireplace inserts, furnaces, boilers, and oil-fired heating appliances.
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UL Listed Chimney Liner: Part of the trusted DuraVent DuraFlex 304 product line, UL 1777 and ULC S635 listed for safe, code-compliant chimney relining installations.
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Professional Chimney Restoration Solution: Ideal for chimney liner replacement, fireplace vent upgrades, and masonry chimney restoration, providing dependable venting performance and long service life
Specifications
| Model |
Size |
Flex Length |
| 3DF304-30 |
3" I.D |
30 ft. |
| 4DF304-30 |
4" I.D |
30 ft. |
| 5DF304-30 |
5" I.D |
30 ft. |
| 55DF304-30 |
5.5" I.D |
30 ft. |
| 6DF304-30 |
6" I.D |
30 ft. |
| 7DF304-30 |
7" I.D |
30 ft. |
| 8DF304-30 |
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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