DuraVent | Double-Wall PolyPro 8" Horizontal Trim Plate Venting System

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In the realm of venting solutions, DuraVent stands tall as the undeniable leader. Our commitment to excellence has earned us a reputation that speaks of innovation, safety, and professionalism. As we introduce the DuraVent PolyPro 8" Horizontal Trim Plate, we invite you to explore a game-changing addition to the HVAC and Hearth markets.

DuraVent PolyPro is not just another venting system; it's a testament to engineering brilliance. Designed for the efficient venting of condensing gas appliances, it simplifies installation, saving contractors valuable time and resources. While PVC pipes have long been the go-to choice for venting water heaters, condensing boilers, and warm air furnaces, PolyPro emerges as the smarter, more reliable alternative. With a remarkable operating temperature limit of 230°F/110°C (compared to PVC's 149°F/65°C max and CPVC's 194°F/90°C), it ensures unmatched performance and longevity.


  1. Effortless Installation: Say goodbye to laborious installations. DuraVent PolyPro's user-friendly design streamlines the process, giving you more time for other crucial tasks.
  2. Superior Heat Resistance: With a higher operating temperature limit, PolyPro is engineered to withstand the toughest conditions, ensuring your venting system's longevity.
  3. Condensation Management: PolyPro doesn't just vent; it manages condensation effectively, keeping your system running smoothly.
  4. Safety First: Trust in a venting solution that meets ANSI Category II and IV gas-burning appliance standards, guaranteeing the safety of your operations.
  5. Cost Efficiency: PolyPro's efficiency doesn't stop at installation. It continues to save you money through its impeccable performance and durability.

Key Features

  1. Trimming Excellence: Use this trim plate to achieve a seamless interior wall penetration transition from Double-Wall PolyPro to single-wall pipe or Horizontal Termination.
  2. Built-in Connection: The built-in female twist-lock connection ensures a secure fit, eliminating worries about leaks or disconnections.
  3. Versatile Applications: PolyPro accommodates a wide range of gas-burning appliances, including high-efficiency water heaters, condensing boilers, and warm air furnaces.
  4. Certified Performance: PolyPro meets the ULC S636 standard in Canada as a Class IIA, IIB, and IIC vent system, assuring you of its superior quality.
  5. Zero Clearance: Enjoy peace of mind with a venting solution that requires zero clearance to combustibles in vertical installations.


The DuraVent PolyPro 8" Horizontal Trim Plate is the ultimate choice for venting high-efficiency water heaters, condensing boilers, and warm air furnaces. Its versatility shines through, accommodating ANSI Category II and IV gas-burning appliances with unmatched precision. Approved by Intertek and listed to the ULC S636 standard in Canada, it's the go-to Class IIA, IIB, and IIC vent system capable of handling exhaust temperatures up to 230°F/110°C and a maximum positive pressure of 15 in-w.c. Whether you're a contractor, installer, or homeowner, PolyPro ensures your system operates at its peak.



Model Dimensions
8PPS-HSTDW 10" (A) x 14" (B)
Clearance 0” clearance to combustibles / vertical installations
Listings ULC S636 is Listed as a Class IIA, IIB, and IIC vent system.
Warranty 10-years Limited 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.

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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.

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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.

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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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