DuraVent | 30' Flex Pipe DuraFlex Pro Stainless Steel Tee Kit

Save $98.04
DuraVentSKU: 3DFPRO-30KT

Regular price$882.40 Sale price$980.44
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Size: 3"
⛟ Estimated Delivery Date: Between and to all states excl. Alaska & Hawaii.


DuraFlex Pro is the embodiment of unmatched quality and performance. Crafted with a whopping 20% more stainless steel per foot than its competitors, it guarantees robustness that transcends industry standards. Its unrivaled flexibility effortlessly accommodates challenging installations requiring multiple offsets, ensuring your project proceeds without a hitch.

Available in a wide range of diameters from 3” through 12”, in lengths, kits, and custom configurations, DuraFlex Pro adapts to your specific needs. It's not just a product; it's a solution tailored to your project's unique demands. Manufactured using highly corrosion-resistant 316 Stainless Steel, DuraFlex Pro adheres to stringent safety standards, listed to UL 1777 and ULC S635.

This is not just a kit; it's your gateway to elevating your HVAC and Hearth endeavors to new heights.


  1. Unparalleled Durability: DuraFlex Pro boasts 20% more stainless steel per foot, ensuring longevity and reliability.
  2. Extreme Flexibility: Easily tackle complex installations with unmatched flexibility, eliminating installation woes.
  3. Wide Diameter Range: Available in diameters from 3” to 12”, this kit adapts to your project's unique requirements.
  4. Corrosion-Resistant: Crafted from 316 Stainless Steel, it guarantees resistance against corrosion, ensuring safety and longevity.
  5. UL Listed: Rest easy knowing this product is listed to UL 1777 and ULC S635, meeting stringent safety standards.

Key Features

  1. Kit Flex Lengths: Choose from kit flex lengths of 15’, 20’, 25’, 30’, and 35’ to suit your specific project needs.
  2. Comprehensive Kit: The kit includes essential components such as DuraFlex SS Top Plate with Welded Storm Collar, DuraFlex SS Removable Vertical Cap, DuraFlex SS Tee with Cap, and DuraFlex Pro length.
  3. Top Plate with Welded Storm Collar: Seal your masonry chimney securely and support flex with ease using this top plate.
  4. Removable Vertical Cap: Effortlessly terminate your relining system, attaching it to the storm collar with a fast connect band.
  5. Tee with Cap: This component allows you to attach to DuraFlex SS length effortlessly using a fast connect band.


DuraFlex Pro's ultra-flexible design makes it ideal for relining masonry chimneys, offering versatility across various heating appliances. It finds its application in:

  • Fireplace Inserts: Enhance your fireplace with a safe and efficient venting solution.
  • Furnaces: Ensure your furnace operates at peak performance with DuraFlex Pro.
  • Boilers: Trust in the durability of our kit to support your boiler's venting needs.
  • Water Heaters: Keep your water heater working flawlessly with this reliable venting solution.


Model Size Flex Length
3DFPRO-30KT 3" 30 ft.
4DFPRO-30KT 4" 30 ft.
5DFPRO-30KT 5" 30 ft.
55DFPRO-30KT 5.5" 30 ft.
6DFPRO-30KT 6" 30 ft.
7DFPRO-30KT 7" 30 ft.
8DFPRO-30KT 8" 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


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.

Order Confirmation:

Upon placing your order, you will promptly receive an email confirmation. Subsequently, we will conduct a thorough inventory check to ensure all items are in stock and available for immediate shipment. If your order aligns with the advertised delivery timeframe, we will promptly process it for shipment to our warehouse. In cases where the expected delivery time extends beyond the advertised timeframe, we will reach out to you via email and/or phone for confirmation.

Order Shipment:

Within one business day of your item being shipped, you will receive an email confirmation containing a tracking number. If you do not receive tracking information within six business days of placing your order, please don't hesitate to get in touch with us for assistance.

Estimated Time of Arrival:

Our typical delivery timeframe ranges from 2 to 10 business days. Custom-made products generally require 3 to 5 weeks for delivery. If the expected delivery date for your order would fall outside of the advertised 2-10 business day time frame, our customer service team will contact you to ensure your agreement with the revised timeline.

Covered Areas:

Please note that all estimated delivery dates and shipping costs advertised on our website apply exclusively to the Contiguous United States. For inquiries regarding shipping to Hawaii or Alaska, kindly reach out to our customer service team. While we do not offer direct shipping to Canada, we are more than willing to ship your order to the freight carrier of your choice.


It is very important that you inspect the packaging of your items when they arrive and check if you received all boxes listed on the delivery receipt. If you notice any damage or shortage of packages, you must make note of it on the bill of lading, take pictures, and refuse delivery. Your note should say "refused due to damage". You must also take photos of all sides of the box and send them to us within 2 days. If there are no damages visible before opening the box, you must note "subject to further inspection may contain concealed damage". If you notice any damage after receiving the delivery, do not throw the box away, and contact us with the photos. After we receive information from you about the refused delivery or concealed damage, we immediately initiate a claim with the shipping company or with the manufacturer. After the claim is fully processed, we ship all replacements at absolutely no cost to you.

Cancellations & Refunds:

We offer free order cancellations before the shipping label or Bill of Lading is generated, or prior to the commencement of production for custom orders. Please note that custom-made items are not eligible for refunds once production has begun. To be eligible for a return, the item must be unused and in its original condition, with all packaging intact and in perfect condition. Orders delivered outside of the United States are not eligible for refunds. If your order arrives damaged, please refer to the "Damages" section. Our refund policy extends for 30 days. If 30 days have elapsed since your purchase, regrettably, we cannot process a refund. Prior to returning an item, please contact us to discuss shipping details. All refunds will be credited to the original credit card or PayPal account used for the purchase, within two days of receiving the returned items at our warehouse.

Please contact sales@belleflame.com for any questions regarding shipping time.

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