DuraVent 25' Flex Pipe Length DuraFlex Pro Top Plate/Cap Kit
The DuraVent 20' Flex Pipe Length DuraFlex Pro Top Plate/Cap Kit is a premium flexible chimney liner kit engineered for superior strength, flexibility, and long-lasting performance in masonry chimney relining. Constructed from highly corrosion-resistant 316 stainless steel, DuraFlex Pro contains 20% more stainless steel per foot than many competing liners, providing exceptional durability and reliability. Its advanced flexible design allows for smooth installation through chimneys with multiple offsets, making it an ideal solution for wood stove inserts, fireplace inserts, and solid-fuel heating appliances. Available in 3-inch through 12-inch diameters, this chimney liner system is UL 1777 and ULC S635 listed for dependable safety and performance.
The included top plate and chimney cap provide a secure, weather-resistant termination that helps protect the chimney liner from rain, debris, and animal intrusion while maintaining proper chimney draft and flue gas ventilation. Designed for both residential and commercial chimney restoration projects, this 20-foot stainless steel chimney liner kit improves appliance efficiency, simplifies maintenance, and delivers reliable venting for wood-burning, non-condensing gas, and oil-fired appliances. DuraVent DuraFlex Pro offers a professional-grade solution for safe, efficient, and long-lasting chimney performance.
Features
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Premium DuraFlex Pro Top Plate/Cap Kit: Complete 20-foot flexible chimney liner kit designed for masonry chimney relining, fireplace inserts, and wood stove venting systems.
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Available in Multiple Diameters: Offered in 3-inch to 8-inch diameters for compatibility with a wide range of wood-burning stoves, fireplace inserts, and chimney liner installations.
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Secure Storm Collar & Top Plate Design: The flex chimney liner remains securely attached to the storm collar and top plate when removing the chimney cap for inspections or routine maintenance.
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Easy Chimney Inspection & Cleaning: Removable chimney cap allows convenient access for chimney cleaning, flue inspections, and regular maintenance without disconnecting the liner.
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Weather-Resistant Chimney Protection: Top plate and cap help prevent rain, debris, moisture, and animal entry, extending the life of the stainless steel chimney liner.
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Professional Chimney Relining Solution: Ideal for chimney restoration, fireplace insert installations, wood stove chimney upgrades, and venting system replacements.
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Improves Chimney Draft Performance: Supports efficient flue gas flow, helping maximize heating appliance efficiency and safe chimney operation.
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Durable Stainless Steel Construction: Built for long-lasting performance in demanding high-temperature chimney venting applications.
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Reliable Venting System: Designed for dependable use with solid-fuel appliances, wood-burning fireplaces, and heating systems requiring a flexible chimney liner.
Specifications
| Model |
Size |
Flex Length |
| 3DFPRO-25VCK |
3" |
25 ft. |
| 4DFPRO-25VCK |
4" |
25 ft. |
| 55DFPRO-25VCK |
5.5" |
25 ft. |
| 6DFPRO-25VCK |
6" |
25 ft. |
| 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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