--- 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: "AR$81907" currency: ARS in_stock: true reviews_count: 13 category: "Repa Market" url: https://www.desertcart.com.ar/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized store_origin: AR region: Argentina --- # 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:** AR$81907 **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?** AR$81907 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/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. With precise dimensions and a push-fit design, it ensures secure, leak-free connections between different duct sizes while optimizing airflow efficiency for residential and commercial applications. ## Description 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 - desertcart.com Review: Size matters - Great if you want to lose some inches. Size matters here Review: Couldn't be any better. - So often dust collector fittings are too loose, or too tight, or too thin, or too whatever. In this case, the 6 to 5 adapter was perfect-- allowing me to connect my 6" DustDeputy port to a 5" hose without leaks. Furthermore, it is a seamless made from heavy guage metal so no bending or distorting. Well worth the extra couple of extra dollars compared to standard sheet metal fittings. ## Features - PRECISE MEASUREMENTS – Small end outer diameter: 3.89" Inches; Widest end outer diameter: 5.86" Inches; Overall depth 4.33" Inches; Transition length in middle after connecting 1.93" Inches; fits solid or flexible ducting for HVAC dryer vents and exhaust fans. - MATERIAL & DURABILITY – Heavy-duty 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 | #90,371 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #132 in HVAC Ducting | | Brand Name | Repa Market | | Connector Type | Reducer | | Customer Reviews | 4.6 4.6 out of 5 stars (1,019) | | 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) ## Available Options This product comes in different **Material Type, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Size matters *by D***N on December 19, 2025* Great if you want to lose some inches. Size matters here ### ⭐⭐⭐⭐⭐ Couldn't be any better. *by N***A on March 27, 2023* So often dust collector fittings are too loose, or too tight, or too thin, or too whatever. In this case, the 6 to 5 adapter was perfect-- allowing me to connect my 6" DustDeputy port to a 5" hose without leaks. Furthermore, it is a seamless made from heavy guage metal so no bending or distorting. Well worth the extra couple of extra dollars compared to standard sheet metal fittings. ### ⭐⭐⭐⭐ Heavy *by M***K on January 4, 2025* Was looking for a 12 in reducer for hvac. And this was about all I have been able to find to date. It is nice but heavy for the use I needed so will possibly have to add some extra support for it. ## 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.com.ar/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized](https://www.desertcart.com.ar/products/208505038-repa-market-6-to-4-inch-duct-reducer-increaser-galvanized) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-10*