Home
Chimney Pipe
Vent Termination and Terminals
DuraVent DuraFlex Aluminum 4 Inch Diameter Flex Liner Kit - 25 Foot Length
DuraVent DuraFlex Aluminum 4 Inch Diameter Flex Liner Kit - 25 Foot Length
Images
DuraVent DuraFlex Aluminum 4 Inch Diameter Flex Liner Kit - 25 Foot Length
$321
52
Was
$399.99
Save
$78.47
(20%)
HURRY! Deal ends in
11h 32m 28s
Qty:
1
Ships same business day
Thank you!
We will send you an email notifying you as soon as this item becomes available.
Have questions?
Our NFI-certified experts are here to help!
Product Details
The DuraVent DuraFlex Aluminum 4 Inch Diameter Flex Liner Kit is a solid choice for relining B-vent chimneys, offering a convenient way to upgrade your existing setup. This 25-foot liner is constructed from single-ply aluminum, providing a dependable channel for your venting needs. It works nicely with natural gas or propane appliances that have a draft hood and are tested to use Type B gas vent systems. This kit includes the liner itself, a cap, a top plate, and a mortar sleeve, making installation straightforward. Using this liner can help protect your masonry chimney from condensation damage that can result from flue products. B-vent systems generally draw air from the room for combustion, which is different from direct vent systems that use outside air. These types of vents are often found in older homes or situations where direct venting isn't practical.
Customer Q&A with Product Specialists
Thank you for reaching out!
Thank you for your interest in our products. We've received your question and will get back to you shortly — usually within the hour but always within 1 business day. To ensure you receive our response, please add our email address (info@efireplacestore.com) to your email whitelist or address book.
In the meantime, while we prepare our response, keep an eye on your inbox for an email from us. We'll be sending you our exclusive Buyer's Guide, packed with valuable information to assist you in making the best decision for your needs.
If you have any further questions or need immediate assistance, feel free to reach out to us directly at 1-800-203-1642.
Thank you again for choosing eFireplaceStore.com!
Customer Reviews
Thank you!
We appreciate you taking the time to review this product. Lucky for you, we have entered you into this month's sweepstakes. Thanks again!
Your review was submitted
Thank you — your review has been received. We were not able to attach your photos, so please do not submit the review again. If you would like the photos added, contact customer service and we will attach them for you.
DuraVent DuraFlex Aluminum 4 Inch Diameter Flex Liner Kit - 25 Foot Length
Yes, I would recommend this item.
By Bill
Sep 25, 2025
Nice product
This flexible vent was a good thickness, not the cheap stuff, all complete in a kit. The price was unusually affordable and the kit was here in just days. Thumbs up, folks.
1
Reviews
100%
would recommend this to a friend
Showing 1 of
1 Customer Reviews
