--- product_id: 361399988 title: "8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector" brand: "kikerike" price: "£23.03" currency: GBP in_stock: true reviews_count: 13 category: "Kikerike" url: https://www.desertcart.co.uk/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one store_origin: GB region: United Kingdom --- # One-way airflow backdraft prevention Spring-loaded flap for optimal sealing 8-inch galvanized steel build 8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector **Brand:** kikerike **Price:** £23.03 **Availability:** ✅ In Stock ## Summary > 💨 Seal the deal on stale air—upgrade your airflow game now! ## Quick Answers - **What is this?** 8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector by kikerike - **How much does it cost?** £23.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one) ## Best For - kikerike enthusiasts ## Why This Product - Trusted kikerike brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Compatibility:** Perfect for residential, commercial, and industrial ducts—ideal for ACs, exhaust fans, range hoods, and heating vents. - • **Effortless Push-In Installation:** Simply insert into your ductwork with the spring positioned for flawless flap operation—no tools required. - • **Optimized One-Way Airflow Control:** Prevents unwanted backflow and air recirculation, enhancing HVAC efficiency and indoor air quality. - • **Durable Galvanized Steel & Aluminum:** Engineered for long-lasting performance and corrosion resistance in any ventilation setup. - • **Trusted by Professionals & Inspectors:** Highly rated and city-inspector approved for seamless integration and peace of mind. ## Overview The 8 Inch Draft Blocker Backdraft Damper by Kikerike is a robust ventilation accessory crafted from galvanized steel and aluminum. Designed for easy push-in installation, it features a spring-loaded flap that ensures one-way airflow, preventing backdrafts and improving HVAC efficiency. Suitable for a wide range of residential and commercial duct applications, this damper is a trusted choice among professionals and inspectors alike. ## Description Kikerike We are committed to designing excellent products and a great shopping experience for our customers. Serving customers is our top priority. Our brands cover a wide range of categories. We are always here to help you with anything and make your home as great as possible. Behind our products stands our professional and technical supports. We will turn your pursuit of life into reality, please look forward to Kikerike. Serving customers is our top priority. Our brands cover a wide range of categories. We are always here to help you with anything and make your home as great as possible. Behind our products stands our professional and technical supports. We will turn your pursuit of life into reality, please look forward to Kikerike. Folding Stool Insulated bag About RV Seal Kit Motorcycle Helmet Rack Wall Mount & 180 Degree Rotation Motorcycle Helmet Rack Wall Mount & 180 Degree Rotation Terminal Pin Removal Tool Kit About Adhesive Strip Tape Review: Works and easy to install - Stops outside air from coming into the dryer. Easy to install, ensure you get the airflow direction correct. 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. ## Features - 【Material】The 8 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】 The 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. Because the sizes are different backdraft damper can not be used with plastic ducts. All dimensions are measured manually, please allow 1-3mm differences ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B099JXNM75 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #7,209 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in HVAC Ducting | | Color | Silver | | Customer Reviews | 4.6 4.6 out of 5 stars (1,193) | | Date First Available | July 15, 2021 | | Item Weight | 9.9 ounces | | Manufacturer | Kikerike | | Material | Metal | | Package Dimensions | 8.86 x 8.46 x 3.7 inches | | Size | 8 Inch | ## Images ![8 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/61V2FgYfWeL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Can this be used to stop my Hot water tank from blowing out the flame on windy days?** A: sorry, I did not use it for the flame from HWT. **Q: can this be used on a dryer vent or will the foam seal melt?** A: I would say the dryer heat could damage or maybe even melt the seal. Maybe you could try removing the gasket and wrap a strip of fiberglass in it’s place. **Q: Would this help keep out bugs?** A: Yes it creates a barrier and only opens one way from the inside of house **Q: Would this fit between two sections of standard, 4 inch semi-rigid ducting? Looking to add to bathroom vent fan ductwork.** A: Yes, that's exactly how you would use it. Make sure to buy the correct HVAC aluminum (metallic) duct tape for the connection. A clamp cannot be used bc the crushing pressure would inhibit the flapper from working properly. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works and easy to install *by S***D on May 7, 2026* Stops outside air from coming into the dryer. Easy to install, ensure you get the airflow direction correct. ### ⭐⭐⭐⭐⭐ Function. Durability. Easy install. What most products should focus on *by C***B 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. ### ⭐⭐⭐⭐⭐ Good quality good price easy to install *by C***E on April 21, 2026* Works great. Easy to install. Even easier to order since this size of damper seems harder to find at the big box stores. ## Frequently Bought Together - 8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - V2262-50 7 Inch Bathroom Exhaust Fan, 50 CFM, 1.0 Sones, 7" Ceiling Exhaust Fan, for 8 Inch Diameter Rough-in Opening, Ideal Ventilation for Bathroom, Laundry Room, Mobile Home, Kitchen & Garage - Broan-NuTone 505 Exhaust Fan, White Vertical Discharge Ceiling Ventilation Fan, 8.5 Sones, 200 CFM, 8" --- ## 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.co.uk/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one](https://www.desertcart.co.uk/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-27*