Estimated Arrival: Between and . (To All Contiguous States)
✔ Same-Day Order Processing
✔ Free Returns
✔ No Restocking Fees
✔ Financing Options Available
Text or call 888-992-1556, start live chat, or email firstname.lastname@example.org with any questions. Our team is available to serve you 8:00 AM - 11:59 PM ET, 7 days a week.
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.
A Flexible Solution For Any Installation
Having a choice when making a decision is important. DuraVent offers the installer a range of products to make the right decision for the right situation. There are four different DuraFlex liners and a complete selection of DuraFlex universal components. No matter which flexes is right for the situation, there's a DuraVent component to complete the venting system
Applications:DuraFlex SW smooth wall flexible relining for a masonry chimney. Use with gas, wood pellet, oil, or wood appliances. Applications include fireplace inserts, furnaces, boilers, and water heaters.
|3DFS-T||3" I.D x 8.5" (A) x 3.25" (B)|
|4DFS-T||4" I.D x 9.5" (A) x 4.25" (B)|
|5DFS-T||5" I.D x 9.5" (A) x 4.25" (B)
|55DFS-T||5.5" I.D x 10.5" (A) x 4.375" (B)|
|6DFS-T||6" I.D x 10.5" (A) x 4.375" (B)|
|7DFS-T||7" I.D x 11.5" (A) x 4.5" (B)|
|8DFS-T||8" I.D x 13" (A) x 5.75" (B)|
|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|
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
We work very hard to ensure that we offer the absolute best prices online. If you find another legitimate online store that offers a lower prices on an identical item we stock (including shipping, tax, etc), we will beat the competitor's price by 10% of the difference! Please see below for complete details.
Please fill out the form below to find out if you qualify for the discount. In most cases you will receive a response within 1 business day.
To request your 110% Best Price Guarantee simply e-mail us a link to the same product on our website, or on our competitors' website.
Our 110% Price Guarantee has some limitations:
There may be brands excluded from that offer. Please contact us for further information.
As soon as you place your order, you will receive a confirmation email. After that, we double-check if all items ordered are in stock and available for immediate shipment. If your order is available for the delivery within the advertised time frame, we will submit it for shipment to the warehouse. If the expected delivery time exceeds the advertised time frame, we'll reach out to you via email and/or phone to confirm the order.
Within 1 business day from the time the item has been shipped, you will receive an email confirmation with tracking number. If you would not receive tracking information within six business days of your order, feel free to follow up with us at email@example.com
Estimated Time of Arrival:
We typically deliver within 2-10 business days. Custom made products are usually delivered within 3-5 weeks. 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 reach out to you to confirm if you are OK with that date.
All estimated delivery dates and shipping costs advertised on the website apply the the Contiguous United States only. Please contact our customer service team to discuss the time and cost of shipping to Hawaii or Alaska. We don't ship directly to Canada, but we can 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, andrefuse 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 can cancel your order at absolutely no cost to you before the shipping label or Bill of Lading has been created, or before production of a custom order has started. Custom made items are not eligible for refunds after production has started. To be eligible for a return, the item must be unused and in the same condition as you received it. It must also remain in the original packaging, and the packaging must be in a perfect condition. We do not charge restocking fees or return shipping fees. All eligible returns are 100% free. Orders delivered outside the United States are not eligible for refunds. If your order arrived damaged, "Damages" section applies. Our refund policy lasts 45 days. If 45 days have gone by since your purchase, unfortunately, we can’t offer you a refund. Please contact us firstname.lastname@example.org before returning an item to discuss shipping details. All refunds will be issued to the credit card or PayPal account you used for your purchase within 2 days after all returned items arrived at our warehouse.
Same-Day Order Processing
No Restocking Fees
Financing Options Available
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