--- 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: "₹ 4362" currency: INR in_stock: true reviews_count: 13 category: "Kikerike" url: https://www.desertcart.in/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one store_origin: IN region: India --- # One-way airflow with minimal resistance Spring-loaded flap for smooth operation 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:** ₹ 4362 **Availability:** ✅ In Stock ## Summary > 💨 Seal the draft, not your airflow — breathe easy with every vent! ## 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?** ₹ 4362 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/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 Application:** Ideal for residential, commercial, and industrial HVAC, exhaust fans, range hoods, and more. - • **Effortless Installation:** Push-in design fits snugly into ducts with optimal spring positioning for flawless function. - • **Optimized Airflow Control:** One-way damper prevents backdrafts while allowing up to 90% airflow efficiency—perfect for low CFM fans. - • **Inspector-Approved Quality:** Trusted by professionals and city inspectors alike for reliable, code-compliant ventilation. - • **Robust Galvanized Steel & Aluminum:** Durable materials engineered for long-lasting ventilation performance. ## Overview This 8-inch backdraft damper crafted from galvanized steel and aluminum ensures one-way airflow control, preventing unwanted backdrafts in HVAC systems. Designed for easy push-in installation with a spring-loaded flap, it maintains high airflow efficiency even in low CFM setups. Widely used across residential and commercial ventilation applications, it’s a professional-grade solution that meets inspection standards and enhances indoor air quality. ## Description Buy 8 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 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) ![8 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/61yLxuTVqEL.jpg) ![8 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) ![8 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) ![8 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 ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ 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 - 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.in/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one](https://www.desertcart.in/products/361399988-8-inch-draft-blocker-backdraft-damper-duct-draft-stopper-one) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-04-26*