Overview
DuraVent is the premier company in the venting industry. With a broad range of engineered venting products, DuraVent has earned its reputation as the industry leader by offering innovative, safe, and professional products for the HVAC and Hearth markets.
DuraFlex Pro is the ultimate in flexible steel liners for strength and flexibility. It features 20% more stainless steel per foot compared to other liners on the market. Its extreme flexibility facilitates problem-free installations where multiple offsets are needed. DuraFlex Pro is available in 3” through 12” diameters in lengths, kits, and custom lengths. DuraFlex Pro is manufactured utilizing highly corrosion-resistant 316 Stainless Steel. Listed to UL 1777 and ULC S635.
Customize The Flex You Need
All DuraFlex is available for orders requiring custom lengths (minimum 10' length). DuraFlex Pro and DuraFlex SW also offer 9"-12" diameters when ordered in custom lengths. (minimum 10' length). Use Ventinox components for all 9"-12" flex systems.
Features
- Kit flex lengths are available in 15’, 20’, 25’, 30’, and 35’.
- Kit includes DuraFlex SS Top Plate w/welded Storm Collar, DuraFlex SS Removable Vertical Cap, DuraFlex SS Tee with Cap, and DuraFlex Pro length.
Includes
| DuraFlex SS Top Plate With Welded Storm Collar |
|
It is used to seal the top of the masonry chimney and support flex. Flex is secured to the storm collar with a fast connect band. |
| DuraFlex SS Removable Vertical Cap |
|
Use to terminate a relining system. Attach to storm collar with fast connect band. |
| DuraFlex SS Tee With Cap |
|
Use to attach to DuraFlex SS length with a fast connect band. |
| DuraFlex Pro SS Length |
|
Use with wood-pellet, non-condensing gas, wood-burning, and oil appliances. |
Applications:
DuraFlex Pro ultra-flexible relining for a masonry chimney. Use with gas, wood pellet, oil, or wood appliances. Applications include fireplace inserts, furnaces, boilers, and water heaters.
Specifications
| Model |
Size |
Flex Length |
| 3DFPRO-25KT |
3" |
25 ft. |
| 4DFPRO-25KT |
4" |
25 ft. |
| 5DFPRO-25KT |
5" |
25 ft. |
| 55DFPRO-25KT |
5.5" |
25 ft. |
| 6DFPRO-25KT |
6" |
25 ft. |
| 7DFPRO-25KT |
7" |
25 ft. |
| 8DFPRO-25KT |
8" |
25 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 |
Downloads
Warning: This product can expose you to Chromium, which is known in the state of California to cause cancer, congenital disabilities, or other reproductive harm. For more information, see CA Prop 65 Warning
