--- product_id: 8766771 title: "Backdraft Damper 6 Inch" brand: "famco" price: "Bs.1839" currency: BOB in_stock: true reviews_count: 8 category: "Famco" url: https://www.desertcart.bo/products/8766771-backdraft-damper-6-inch store_origin: BO region: Bolivia --- # Gravity-operated airflow control 6-inch precision fit Durable galvanized steel build Backdraft Damper 6 Inch **Brand:** famco **Price:** Bs.1839 **Availability:** ✅ In Stock ## Summary > 🌀 Keep your airflow flawless—no backdrafts, no compromises! ## Quick Answers - **What is this?** Backdraft Damper 6 Inch by famco - **How much does it cost?** Bs.1839 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/8766771-backdraft-damper-6-inch) ## Best For - famco enthusiasts ## Why This Product - Trusted famco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Foam-Sealed Air Tightness:** Minimizes air leakage for optimized energy efficiency and system performance. - • **Gravity-Driven Efficiency:** Innovative aluminum blades open with airflow and close automatically, eliminating backdrafts without power. - • **Seamless 6-Inch Integration:** Perfectly sized for versatile HVAC setups, ensuring a flawless fit every time. - • **Dual Orientation Flexibility:** Engineered for both horizontal and vertical (upward) installations, adapting to your system’s needs. - • **Built to Endure Extreme Conditions:** Galvanized steel construction rated from -20°F to 160°F for reliable, long-lasting operation. ## Overview The FAMCO Backdraft Damper 6 Inch is a robust, galvanized steel damper designed for HVAC systems requiring reliable backdraft prevention. Featuring aluminum blades that open with airflow and close by gravity, it fits both horizontal and vertical (upward) installations. Its foam seal minimizes air leakage, and it withstands temperatures from -20°F to 160°F, making it a durable, energy-efficient choice for intake or exhaust applications. ## Description The FAMCO BD Butterfly Damper is used as a back draft damper for heat exchangers, exhaust systems, solar heating systems and other intake or exhaust applications where a powered damper is not needed. This damper works in both horizontal or vertical positions (upward airflow only) and the foam seal provides minimal air leakage. Due to its unique design and Aluminum blades, it opens easily with normal air flow and closes with gravity. Quality constructed in Galvanized Steel, gauges 28-22. Rated to -20 to 160 Degrees F. Review: Range Hood Backdraft Fix! - Nice quality backdraft damper! Installed on a 10" range hood duct because cold air was constantly being drawn into the home. This remedied the issue and seems to be built very well. Review: Worked great for our application - Bought this for our new range exhaust hood because there was no damper that came with the very expensive Bosch hood we installed. Cold air and outdoor sounds came streaming in constantly. This damper fit perfectly over our 6" vent pipe within the hood to ceiling riser and cold air and outside sounds are gone! ## Features - 6 inch - Back-Draft Damper - Horizontal & Vertical (See Spec Sheet) - Intake or Exhaust ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B009AX6PUM | | Best Sellers Rank | #211,579 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #481 in HVAC Ducting | | Color | Galvanized | | Customer Reviews | 4.4 4.4 out of 5 stars (93) | | Date First Available | September 14, 2012 | | Item Package Quantity | 1 | | Item Weight | 8 pounds | | Item model number | BD6 | | Manufacturer | FAMCO | | Material | Aluminum | | Part Number | BD6 | | Shape | Rectangular | | Size | 6 Inch | ## Images ![Backdraft Damper 6 Inch - Image 1](https://m.media-amazon.com/images/I/71RRsQxqvUL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Range Hood Backdraft Fix! *by K***K on February 19, 2026* Nice quality backdraft damper! Installed on a 10" range hood duct because cold air was constantly being drawn into the home. This remedied the issue and seems to be built very well. ### ⭐⭐⭐⭐⭐ Worked great for our application *by J***N on December 23, 2025* Bought this for our new range exhaust hood because there was no damper that came with the very expensive Bosch hood we installed. Cold air and outdoor sounds came streaming in constantly. This damper fit perfectly over our 6" vent pipe within the hood to ceiling riser and cold air and outside sounds are gone! ### ⭐⭐⭐⭐⭐ Just what I needed *by M***E on December 24, 2022* I installed two of these to prevent backflow between my main HVAC air handler and ERV. One to prevent warm supply air from backdrafting into the basement ERV outlets and ERV itself when the unit is off, and one to prevent stale return air from the basement from mixing with circulating return air from the rest of the house. These are well made, easy to install, and open easily with low air flow. I used them to replaced two other spring loaded dampers that were creating too much static pressure (the springs were too strong). The shipping cost on these was a bit high, but I'm glad I got them. ## Frequently Bought Together - FAMCO Backdraft Damper 6 Inch - Lambro 246 6" Aluminum Duct Connector --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.bo/products/8766771-backdraft-damper-6-inch](https://www.desertcart.bo/products/8766771-backdraft-damper-6-inch) --- *Product available on Desertcart Bolivia* *Store origin: BO* *Last updated: 2026-09-08*