--- product_id: 353363081 title: "- 6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector" price: "€ 38.66" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.be/products/353363081-6-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one store_origin: BE region: Belgium --- # ultra-low resistance airflow one-way backdraft prevention 6-inch galvanized steel build - 6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector **Price:** € 38.66 **Availability:** ✅ In Stock ## Summary > 💨 Stop drafts, start fresh airflow — your ducts’ new best friend! ## Quick Answers - **What is this?** - 6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - **How much does it cost?** € 38.66 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/353363081-6-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless 6-Inch Fit:** Engineered to slide effortlessly into standard ducts for a snug, secure installation. - • **Smart Backdraft Defense:** Prevents unwanted air recirculation and backflow, enhancing indoor air quality and energy efficiency. - • **Rust-Resistant Durability:** Galvanized steel frame with aluminum flaps ensures long-lasting, corrosion-free performance. - • **Effortless Airflow Control:** Light spring action opens easily even at low CFM, optimizing ventilation without restriction. - • **Universal Vent Compatibility:** Perfect for ACs, exhaust fans, range hoods, and heating ducts across residential and commercial spaces. ## Overview This 6-inch backdraft damper is crafted from galvanized steel with aluminum flaps, designed for easy insertion into ventilation ducts. It features a lightweight spring mechanism that allows smooth one-way airflow, preventing backdrafts and improving ventilation efficiency in residential, commercial, and industrial HVAC systems. ## Description Buy 6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector: Draft Stoppers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Function. Durability. Easy install. What most products should focus on - Wasnt avail at big box stores near me so I scrambled to order this for my contractor installing the ductwork for my new kitchen stove vent. He said it was perfect and easy to install. It seems to be working great and our city inspector specifically went out of his way to check it. Passed without issue. Recommended. Review: Perfect for Low CFM Installs. Works great! - Perfect for my installation. Too many of these type dampers have very stiff springs and it will not work with low CFM air flows. These are great. You can blow at them with your mouth and get them to open. And they seal very well. I use them for air circulation between rooms with fans set to about 60 CFM. The last ones I got restricted about 80% of the air. These only restrict maybe 10%. This is key for low CFM situations like bath exhaust fans, for instance. ## Features - 【Material】The 6 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum - 【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation - 【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use - 【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications - 【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different. All dimensions are measured manually, please allow 1-3mm differences ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B099KGLXQC | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #5,495 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #174 in HVAC | | Color | Silver | | Customer Reviews | 4.6 4.6 out of 5 stars (1,148) | | Date First Available | July 15, 2021 | | Item Weight | 7 ounces | | Manufacturer | Kikerike | | Package Dimensions | 6.97 x 6.73 x 3.78 inches | | Size | 6 Inch | ## Images ![- 6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Image 1](https://m.media-amazon.com/images/I/51A9nB2V4+L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Function. Durability. Easy install. What most products should focus on *by C***N on March 27, 2026* Wasnt avail at big box stores near me so I scrambled to order this for my contractor installing the ductwork for my new kitchen stove vent. He said it was perfect and easy to install. It seems to be working great and our city inspector specifically went out of his way to check it. Passed without issue. Recommended. ### ⭐⭐⭐⭐⭐ Perfect for Low CFM Installs. Works great! *by J***N on January 23, 2026* Perfect for my installation. Too many of these type dampers have very stiff springs and it will not work with low CFM air flows. These are great. You can blow at them with your mouth and get them to open. And they seal very well. I use them for air circulation between rooms with fans set to about 60 CFM. The last ones I got restricted about 80% of the air. These only restrict maybe 10%. This is key for low CFM situations like bath exhaust fans, for instance. ### ⭐⭐⭐⭐⭐ light weight but works as designed *by B***L on February 16, 2026* pretty light weight but I think that's by design. Alum so no rust worries - very light spring action. Fit perfectly in the existing duct work. I wasn't able to use the baffle on the fan I bought for the bathroom so this was a nice alternative. ## Frequently Bought Together - 6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - EesTeck 4Pcs 6" Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps（141mm-165mm） - AC Infinity Flexible 6-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust --- ## 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.be/products/353363081-6-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one](https://www.desertcart.be/products/353363081-6-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-02*