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
- Custom lengths are also available for 3” - 8” diameters. 9”-12” diameters available in custom lengths only (Use Ventinox components).
- Minimum length of 10’ for custom orders.
- Maximum 200' for 3" - 4" diameters, 125' for 5" diameter, 100' for 5.5" - 6", 50' for 7" - 8", 25' for 10" and 12" diameters.
Note:
- Must be ordered in increments of 10'.
- 3"-8" diameter flex can be ovalized up to the first 4'.
- Call Customer Service to add ovalizing to your order and for pricing.
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-30 |
3" I.D |
30 ft. |
| 4DFPRO-30 |
4" I.D |
30 ft. |
| 5DFPRO-30 |
5" I.D |
30 ft. |
| 55DFPRO-30 |
5.5" I.D |
30 ft. |
| 6DFPRO-30 |
6" I.D |
30 ft. |
| 7DFPRO-30 |
7" I.D |
30 ft. |
| 8DFPRO-30 |
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 |
Downloads
Safety Information: CA Prop 65 Warning
