--- product_id: 208505038 title: "Repa Market 6\" to 4\" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods" brand: "repa market" price: "€ 47.36" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.gr/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized store_origin: GR region: Greece --- # Optimized airflow efficiency Precision fit: 3.89" to 5.86" OD Heavy-duty galvanized steel Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods **Brand:** repa market **Price:** € 47.36 **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your airflow game with precision and durability! ## Quick Answers - **What is this?** Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods by repa market - **How much does it cost?** € 47.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized) ## Best For - repa market enthusiasts ## Why This Product - Trusted repa market brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Galvanized steel construction resists rust and corrosion for long-lasting HVAC performance. - • **Maximized Airflow:** Engineered to maintain high ventilation efficiency, reducing energy waste and noise. - • **Effortless Installation:** Push-fit design compatible with flexible and rigid ducts for quick DIY or pro setups. - • **Versatile Vent Solution:** Ideal for dryer vents, bathroom fans, kitchen hoods, and industrial exhaust systems. - • **Seamless Size Transition:** Perfectly bridges 6" to 4" ducts with exact measurements for leak-free connections. ## Overview The Repa Market 6" to 4" galvanized steel duct reducer/increaser offers a robust, corrosion-resistant solution for HVAC and ventilation systems. 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galvanized steel resists rust, moisture, and corrosion; built to last for residential, commercial, and industrial ducting applications. - FUNCTIONALITY & FEATURES – Works as a reducer or increaser; ensures secure fit for ventilation fans, dryer ducts, and exhaust vent pipes while maintaining high airflow efficiency. - INSTALLATION & USE – Simple push-fit installation for quick DIY or professional projects; compatible with flexible dryer vent hose, rigid duct pipe, and inline duct fans. - APPLICATION & BENEFIT – Perfect for HVAC tools and projects, bathroom extractor fans, kitchen range hoods, tumble dryers, and ventilation systems in homes, garages, and workshops. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B089NKL35L | | Best Sellers Rank | #78,227 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #131 in HVAC Ducting | | Brand Name | Repa Market | | Connector Type | Reducer | | Customer Reviews | 4.6 4.6 out of 5 stars (1,064) 4.6 out of 5 stars | | Exterior Finish | Alloy Steel | | Included Components | Galvanized Steel Reducer/Increaser | | Item Dimensions | 6.02 x 4.33 x 6.02 inches | | Manufacturer | Repa Market | | Material Type | Metal | | Number Of Pieces | 1 | | Size | 4 to 6 Inch / 100 to 150 mm | | Thread Size | 6 inches | | Thread Type | NPT | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Repa Market - **Connector Type:** Reducer - **Exterior Finish:** Alloy Steel - **Item dimensions L x W x H:** 6.02 x 4.33 x 6.02 inches - **Manufacturer:** Repa Market - **Material:** Metal - **Number of Pieces:** 1 - **Size:** 4 to 6 Inch / 100 to 150 mm - **Thread Size:** 6 inches - **Thread Type:** NPT ## Images ![Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 1](https://m.media-amazon.com/images/I/81oTKzTRG3L.jpg) ![Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 2](https://m.media-amazon.com/images/I/71-uMQpkL6L.jpg) ![Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 3](https://m.media-amazon.com/images/I/81w6YSILurL.jpg) ![Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 4](https://m.media-amazon.com/images/I/81TDxKDA4OL.jpg) ![Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 5](https://m.media-amazon.com/images/I/81XzMsqRdML.jpg) ## Available Options This product comes in different **Material Type, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Size matters *by on Reviewed in the United States December 19, 2025* Great if you want to lose some inches. Size matters here ### ⭐⭐⭐⭐⭐ quality reducer for exhaust use *by on Reviewed in the United States June 15, 2024* This thing is decently constructed, easy to work with and priced fairly. I used it to neck up from 3" to 4" ducting, reducing pressure in my bathroom exhaust system. Which allowed the pipe clamps to retain the ducting better. Would buy again. ### ⭐⭐⭐⭐⭐ It works! *by on Reviewed in the United States March 8, 2024* I use this fitting for part of my dust collector with aluminum tape. It works great. it doesn’t fit on the dust collector but with the tape it’s a pretty solid connection. ## Frequently Bought Together - Galvanized Steel 6 to 4 Inch Duct Reducer - Round Duct Fitting Pipe Increaser - Reducing Coupling - 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.gr/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized](https://www.desertcart.gr/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-06-21*