--- product_id: 508225406 title: "Kikerike 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector" brand: "kikerike" price: "฿2297" currency: THB in_stock: true reviews_count: 5 category: "Kikerike" url: https://www.desertcart.co.th/products/508225406-kikerike-4-inch-draft-blocker-backdraft-damper-duct-draft-stopper store_origin: TH region: Thailand --- # Fits standard 4-inch ventilation ducts One-way airflow with spring-loaded flap Galvanized steel & aluminum build Kikerike 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector **Brand:** kikerike **Price:** ฿2297 **Availability:** ✅ In Stock ## Summary > 🌬️ Stop the Backdraft, Start the Fresh Flow! ## Quick Answers - **What is this?** Kikerike 4 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?** ฿2297 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/508225406-kikerike-4-inch-draft-blocker-backdraft-damper-duct-draft-stopper) ## 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 - • **Universal 4-Inch Fit:** Seamlessly inserts into standard 4-inch ducts for quick, tool-free installation. - • **Wide Application Spectrum:** Ideal for ACs, exhaust fans, range hoods, heating ducts, and more—residential to industrial. - • **Versatile Installation Options:** Works perfectly in both horizontal and vertical duct setups, adapting to your space. - • **Durable Industrial-Grade Materials:** Galvanized steel body with aluminum flaps and stainless steel spring for long-lasting performance. - • **Effortless One-Way Airflow Control:** Spring-loaded flap ensures optimal ventilation by preventing backdrafts and air recirculation. ## Overview The Kikerike 4 Inch Draft Blocker is a robust backdraft damper crafted from galvanized steel, aluminum, and stainless steel components. Designed for easy insertion into standard 4-inch ventilation ducts, it features a spring-loaded flap that automatically opens to allow airflow and closes to prevent backflow, enhancing ventilation efficiency across residential, commercial, and industrial settings. ## Description The rear shock absorber is made for insertion into inch ventilation ducts. RKI reflux damper automatically opens and closes. It has a strong spring and can be installed both horizontally and vertically. The flap is suitable for retrofitting, as it is completely inside the duct. Review: Bonne qualité - Je suis très satisfait 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 4 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel. - 【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 | B099KGNZRL | | Best Sellers Rank | #239 in Registers, Grilles & Vents | | Date First Available | 12 November 2022 | | Department | unisex-adult | | Manufacturer | Kikerike | | Package Dimensions | 15.9 x 12.4 x 9.91 cm; 118 g | ## Images ![Kikerike 4 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/614fF1RgQ7L.jpg) ![Kikerike 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Image 2](https://m.media-amazon.com/images/I/61IBcJv9GwL.jpg) ![Kikerike 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Image 3](https://m.media-amazon.com/images/I/71x-mOY091L.jpg) ![Kikerike 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Image 4](https://m.media-amazon.com/images/I/71Umfgri1KL.jpg) ![Kikerike 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Image 5](https://m.media-amazon.com/images/I/61VAPY6SsSL.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 ### ⭐⭐⭐⭐⭐ Bonne qualité *by J***S on 28 June 2026* Je suis très satisfait ### ⭐⭐⭐⭐⭐ Function. Durability. Easy install. What most products should focus on *by C***B on 27 March 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. ### ⭐⭐⭐⭐⭐ Exactly what I ordered and delivered the next day. *by I***M on 8 May 2026* Exactly what I ordered and delivered the next day. Installed it and works perfectly. ## Frequently Bought Together - 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - QWORK 4" Duct Splitter, 45° Degree 4 Inch Branch Metal Duct Connector 3 Way Hose Adapter/Splitter - EesTeck 4" (Diameter) Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps (4Pcs, 91mm-114mm) --- ## 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.th/products/508225406-kikerike-4-inch-draft-blocker-backdraft-damper-duct-draft-stopper](https://www.desertcart.co.th/products/508225406-kikerike-4-inch-draft-blocker-backdraft-damper-duct-draft-stopper) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-07-10*