Description
Elevate your venting needs to new heights with DuraVent's DuraFlex Pro Stainless Steel Flex Pipe. As the industry's leading name, DuraVent brings you a game-changing product designed to tackle the most demanding venting challenges. Engineered for strength, flexibility, and longevity, this 100-foot stainless steel wonder is set to revolutionize your HVAC and Hearth projects.
Crafted with innovation in mind, DuraFlex Pro boasts a remarkable 20% more stainless steel per foot compared to its competitors, ensuring unwavering durability. Its extreme flexibility effortlessly handles complex installations, making it the go-to choice when dealing with multiple offsets. Available in a wide range of diameters, lengths, kits, and custom options, DuraFlex Pro adapts to your unique requirements. Plus, it's built with 316 Stainless Steel, renowned for its exceptional corrosion resistance. Safety is paramount, and that's why DuraFlex Pro proudly holds certifications from UL 1777 and ULC S635.
Step into a world of versatility as DuraVent allows you to customize the flex you need. Whether you require lengths of 3" to 8" diameters or the robust 9" to 12" options, we've got you covered with custom solutions. Ventinox components seamlessly integrate into all 9"-12" flex systems, ensuring a hassle-free experience.
With DuraFlex Pro, the possibilities are endless. Elevate your venting game, and let's redefine excellence together.
Benefits
- Unrivaled strength and flexibility for complex installations.
- 20% more stainless steel per foot ensures durability.
- Wide range of diameters and custom options available.
- Highly corrosion-resistant 316 Stainless Steel construction.
- Certified to UL 1777 and ULC S635 standards for safety.
Applications
- Ideal for relining masonry chimneys.
- Compatible with gas, wood pellet, oil, and wood appliances.
- Perfect for fireplace inserts, furnaces, boilers, and water heaters.
Ideal Applications
- When you need a flexible, durable venting solution.
- For projects requiring multiple offsets.
- In situations where corrosion resistance is essential.
- Anywhere safety and reliability are paramount.
Specifications
| Model | Size | Flex Length |
| 55DFPRO-100 | 5.5" I.D | 100 ft. |
| 6DFPRO-100 | 6" I.D | 100 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
About the Manufacturer
Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting.The company’s research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro.

