- Home Page /
- Tools & Home Improvement /
- Building Supplies /
- HVAC /
- Ducting /
- Tjernlund BD-8 Spring-Return Backdraft Damper...
0 ratings
Item #:
5539175
Tjernlund BD-8 Spring-Return Backdraft Damper for 8 in Round Duct Systems
82% of respondents would recommend this to a friend
Item #:
5539175
XCD 320
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Only 3 items left in stock.
Order now and get it around Tuesday, November 17
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
Automatic Operation
The BD-4 features a spring return mechanism that automatically seals the duct when not in use, preventing backdrafts and optimizing airflow efficiency in residential and commercial spaces.
Compact Design
Designed for 4-inch ducts, the BD-4's slim profile allows for easy installation in tight spaces, making it a versatile solution for various HVAC applications without compromising performance.
Durable Construction
Crafted from high-quality materials, the BD-4 ensures long-lasting durability and reliable operation, providing excellent value and peace of mind over time compared to competitors in the market.
Product Details
| Brand Name | Tjernlund |
| Model Number | BD-8 |
| Manufacturer Part Number | BD-8 |
| Global Trade Identification Number | 00080956439000 |
| Number of Items | 1 |
| UPC | 080956439000 |
| Item Highlight | Spring-return damper fits 8 in round duct to reduce reverse airflow; verify orientation, clearance and installation needs. |
| Unit Count | 1 Count |
| Included Components | Damper |
| Manufacturer | Tjernlund |
| Auto Part Position | Rear |
| Compatible with Vehicle Type | Truck |
| Style Name | Modern |
| Material Type | Aluminum |
| Brand | Tjernlund |
| Style | Modern |
| Vehicle Service Type | Truck |
| Material | Aluminum |
| Item Weight | 3 lbs (1.36 kg) |
What's in the box
Damper
Who Should Buy?
-
Homeowners
Ideal for homeowners needing to prevent backdrafts and ensure proper ventilation in their HVAC systems.
-
HVAC Technicians
Excellent for HVAC professionals installing systems to enhance airflow efficiency and meet code requirements.
-
Energy Savers
Suitable for those aiming to reduce energy loss by preventing unwanted airflow when systems are not in use.
-
Large Duct Systems
Not suitable for larger duct systems as it is specifically designed for 4-inch diameter ducts only.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How to Shop Tjernlund BD-8 Spring-Return Backdraft Damper for 8 Online From Ubuy?
Answer: It’s easy to shop Tjernlund BD-8 Spring-Return Backdraft Damper for 8 online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
Question:
Is Tjernlund BD-8 Spring-Return Backdraft Damper for 8 Available to Shop Online in Anguilla?
Answer: Yes, at Ubuy Anguilla this product is available for you to shop at a reasonable price. The Tjernlund BD-8 Spring-Return Backdraft Damper for 8 is not available locally but you can trust us with our express shipping services. -
Question:
How Long Does It Take to Get Product After Placing the Order?
Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
Tjernlund Ducting BD-8 Editorial Review
Tjernlund BD-4 Spring-Return Backdraft Damper is designed specifically for 4 in round duct systems to effectively reduce reverse airflow. It features a robust build with a modern style, made from aluminum and rubber, ensuring durability and longevity in any application. Users have noted that the damper fits snugly on standard 4-inch sewer pipes, with a strong spring mechanism that maintains tight closure. However, potential buyers should consider the damper's suitability for their setup, as some reviews mention that the spring tension may be too strong for lower airflow applications, requiring adjustments for optimal functionality. Overall, many find it to be a great addition for dust collection systems and other ventilation needs.
Customer Reviews & Ratings
83 customers ratings
-
5 Star
50%
-
4 Star
21%
-
3 Star
9%
-
2 Star
10%
-
1 Star
10%
Review this product
Share your thoughts with other customers
Pros
- Strong build quality and solid construction
- Fits snugly on standard 4 in pipes
- Quiet operation without clacking sounds
- Designed to reduce reverse airflow effectively
- Suitable for various duct systems
Cons
- Spring tension may be too strong for lower airflow applications
Platform Trust & Buyer Confidence
FK
Fatuma
Verified buyer
“My experience was great I really liked the fact that i get my order delivered within the days promised. The packaging , the product, shipment everything was so good, trustworthy and fast. Definitely will shop again”
28 October 2026 · via Trustpilot
JC
Jane
Verified buyer
“Very easy to order. The product was good quality. The delivery service was excellent, updates given so you knew what was happening.”
30 October 2026 · via Trustpilot
R
Roman
Verified buyer
“Good experience The product I ordered came as expected. What most impressed me in dealing with Ubuy is the communication and updates I received through the process. I knew exactly where and when my item was at all times until delivery. Well done!”
31 October 2026 · via Trustpilot
SH
SJ Hong
Verified buyer
“The package came very quickly and the shipping fee was extremely reasonable! Overall, the service as well as my experience of ordering from Ubuy was a very pleasant experience! Thank you so much!”
31 October 2026 · via Trustpilot
SH
Szilvia
Verified buyer
“Great service. Ordered an item coming from the USA which wasn't available in Ireland or even for delivery from the retailer and it had arrived within a few days. Very happy with the product and the service.”
31 October 2026 · via Trustpilot
WHY SHOP WITH US
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
XCD 320
Order now and get it around Tuesday, November 17
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 3 items left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.