--- product_id: 370268339 title: "FRESH SPEED 4-Inch Backdraft Damper Shutter Inline Spring Loaded for Dryer Duct" price: "C$1852" currency: NIO in_stock: true reviews_count: 13 url: https://www.desertcart.ni/products/370268339-fresh-speed-4-inch-backdraft-damper-shutter-inline-spring-loaded store_origin: NI region: Nicaragua --- # Galvanized steel & stainless steel build One-way airflow control 4-inch precision fit FRESH SPEED 4-Inch Backdraft Damper Shutter Inline Spring Loaded for Dryer Duct **Price:** C$1852 **Availability:** ✅ In Stock ## Summary > 🌬️ Keep your airflow fresh and your energy bills fresher! ## Quick Answers - **What is this?** FRESH SPEED 4-Inch Backdraft Damper Shutter Inline Spring Loaded for Dryer Duct - **How much does it cost?** C$1852 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/370268339-fresh-speed-4-inch-backdraft-damper-shutter-inline-spring-loaded) ## 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 - • **Effortless Installation:** Fits perfectly into 4-inch ducts with no bending or crimping required—ideal for flexible or rigid ducts. - • **Durable Premium Materials:** Galvanized steel casing, aluminum blades, and stainless steel spring ensure long-lasting performance. - • **Trusted 24-Month Warranty:** Reliable support with a 2-year guarantee and responsive customer service within 24 hours. - • **Noise-Reducing Seal Technology:** Inner rubber seal and outer foam strip minimize noise and enhance airtightness for a quieter home. - • **Seamless One-Directional Airflow:** Automatically opens only with outgoing air to prevent backdrafts and energy loss. ## Overview The FRESH SPEED 4-Inch Backdraft Damper is a high-quality inline shutter designed for dryer ducts and ventilation systems. Crafted from galvanized steel, aluminum, and stainless steel, it ensures durable, one-way airflow control to prevent backdrafts and drafts. Easy to install with noise-reducing seals, it fits both flexible and rigid ducts perfectly. Backed by a 24-month warranty, it’s the smart choice for energy-efficient, comfortable living spaces. ## Description FRESH SPEED Committed to providing high-quality, sustainability, and value in ventilation solutions worldwide! About Us Backed by advanced R&D, innovative design, and strict quality control, we manufacture high-quality ventilation components, including duct accessories, air terminals, and installation fittings. Committed to sustainability and performance, we deliver eco-friendly, cost-effective ventilation solutions that create fresher, healthier, and more comfortable living spaces worldwide. About Us Backed by advanced R&D, innovative design, and strict quality control, we manufacture high-quality ventilation components, including duct accessories, air terminals, and installation fittings. Committed to sustainability and performance, we deliver eco-friendly, cost-effective ventilation solutions that create fresher, healthier, and more comfortable living spaces worldwide. Stainless Dryer Vent Cover Premium dryer vent cover designed for your home improvement needs Stainless Dryer Vent Cover Premium dryer vent cover designed for your home improvement needs Dryer Vent Cover Visit the Store Dryer Vent Cover Visit the Store Removable Vent Cover with Mesh Visit the Store Removable Vent Cover with Mesh Damper & Diffuser & Silencer Visit the Store Damper & Diffuser & Silencer Review: 4” inline dryer duct damper - I installed this for my daughter on her dryer duct at an apartment. The duct had feedback so we put this on to ensure the airflow was one way only and not flowing back into her dryer. IT was a perfect fit with the flexible duct tubing and the dryer. I did not need to bend or crimp anything. The flapper doors work very well and it’s a quality metal product. Very easy to install. So far it seems very durable. Great value for the money! Review: Good quality. Just what I needed. - Perfect! We had a cold windy day and I felt cold air circulating out from under my range. It was pouring in from the microwave through the vent hood duct. My first winter in this home and found the vent on the outside doing nothing to prevent cold air blowing in through the microwave vent hood. This fit perfectly INSIDE the 6” duct and created a great seal to prevent any draft coming into the house through the duct. There was not room for an additional fitting as there is a 90 out of the wall into the hood. Good quality, perfect amount of spring tension, the vent van pressure opens the damper with no problem. ## Features - Home Improvement: Especially suitable for inserting into dryer duct. Perfect for use in bathrooms, garages, sheds, campers, stopping inflow of air from AC units, range hood extractors, heating systems - Easy Installation: The duct damper opens and closes automatically, allowing only one-directional airflow. The damper blades open only in the outflowing air direction when the shutter is installed. The duct valve for 4-inch duct best installed in a horizontal position and inserted fully into the duct. This also applies to vertical installation - High-Quality Material: The casing of the shutter is made of galvanized steel sheet. The dryer vent valve blades are made of aluminium. The shaft and spring are made of stainless steel - Great for Home Use: The inner rubber seal is used for better tightness and for noise reduction. The outer foam sealing strip provides good tightening and fixing of the backdraft damper inside the duct. The back draught valve can be inserted into a non-flexible metal or plastic duct directly, but for flexible duct you must use steel duct clamps to secure the backdraft damper - Support Guarantee: We have a 24-month warranty. Feel free to contact us with any questions. We will reply within 24 hours ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | FRESH SPEED | | Part Number | 752349625313 | | Item Weight | 3.52 ounces | | Package Dimensions | 4.21 x 4.17 x 2.44 inches | | Item model number | 752349625313 | | Size | 4-Inch 100mm | | Batteries Included? | No | | Batteries Required? | No | ## Images ![FRESH SPEED 4-Inch Backdraft Damper Shutter Inline Spring Loaded for Dryer Duct - Image 1](https://m.media-amazon.com/images/I/51GobSS5nVL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 4” inline dryer duct damper *by J***S on October 24, 2025* I installed this for my daughter on her dryer duct at an apartment. The duct had feedback so we put this on to ensure the airflow was one way only and not flowing back into her dryer. IT was a perfect fit with the flexible duct tubing and the dryer. I did not need to bend or crimp anything. The flapper doors work very well and it’s a quality metal product. Very easy to install. So far it seems very durable. Great value for the money! ### ⭐⭐⭐⭐⭐ Good quality. Just what I needed. *by D***H on November 17, 2025* Perfect! We had a cold windy day and I felt cold air circulating out from under my range. It was pouring in from the microwave through the vent hood duct. My first winter in this home and found the vent on the outside doing nothing to prevent cold air blowing in through the microwave vent hood. This fit perfectly INSIDE the 6” duct and created a great seal to prevent any draft coming into the house through the duct. There was not room for an additional fitting as there is a 90 out of the wall into the hood. Good quality, perfect amount of spring tension, the vent van pressure opens the damper with no problem. ### ⭐⭐⭐⭐⭐ Works great, easy install *by R***. on April 17, 2026* High quality… easy install. ## Frequently Bought Together - FRESH SPEED 4-Inch Backdraft Damper Shutter Inline Spring Loaded for Dryer Duct - EesTeck 4" (Diameter) Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps (4Pcs, 91mm-114mm) - AC Infinity Flexible 4-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.ni/products/370268339-fresh-speed-4-inch-backdraft-damper-shutter-inline-spring-loaded](https://www.desertcart.ni/products/370268339-fresh-speed-4-inch-backdraft-damper-shutter-inline-spring-loaded) --- *Product available on Desertcart Nicaragua* *Store origin: NI* *Last updated: 2026-07-07*