--- product_id: 248971241 title: "5\" to 4\" Inch / 125 to 100 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (5 to 4 Inch)" brand: "repa market" price: "28064CFA" currency: XOF in_stock: true url: https://www.desertcart.sn/products/248971241-5-to-4-inch-125-to-100-mm-round-galvanized store_origin: SN region: Senegal --- # Versatile Use Sturdy Steel Easy to Install 5" to 4" Inch / 125 to 100 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (5 to 4 Inch) **Brand:** repa market **Price:** 28064CFA **Availability:** ✅ In Stock ## Summary > 🔄 Ducting Made Easy: Connect, Reduce, and Breathe Better! ## Quick Answers - **What is this?** 5" to 4" Inch / 125 to 100 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (5 to 4 Inch) by repa market - **How much does it cost?** 28064CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/248971241-5-to-4-inch-125-to-100-mm-round-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 - • **DIY Friendly:** Perfect for both professionals and DIY enthusiasts looking to enhance their ventilation. - • **Built for Every Space:** Ideal for residential and commercial applications, from kitchens to hydroponics. - • **Lightweight Yet Strong:** At just 132g, this fitting is easy to handle without compromising on strength. - • **Transform Your Ducting:** Seamlessly connect different duct sizes with this robust reducer. - • **Durable Galvanized Steel:** Crafted for longevity, ensuring your ventilation systems stand the test of time. ## Overview The 5" to 4" Inch Round Galvanized Steel Duct Reducer is a versatile and durable duct fitting designed for seamless connections between different duct sizes. Made from sturdy galvanized steel, it is perfect for a variety of applications including HVAC systems, extractor fans, and hydroponics. Weighing only 132g, it combines strength with ease of installation, making it an essential tool for both professionals and DIY enthusiasts. ## Description 5" to 4" Inch / 125 to 100 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (5 to 4 Inch) ## Features - Galvanized Steel 125 mm Male to 100 mm Male Round Ducting Adaptor / 5" (4.92") to 4" (3.93") - Can be used with HVAC systems, bathroom extractor fans, inline ventilators, cooker hoods, tumble dryers, hydroponics, kitchens or, anywhere else in the apartment, home or office space. - Sturdy Steel ducting is perfect for DIY and Trade use. - This is a very practical robust, all in one, solid duct reducer or increaser which can be used when connecting two different, solid or flexible ducts or ducts to ventilators, or vice versa, from small to large, larger to small. - Perfectly suited for ducting your Tumble Dryer, Bathroom or Any type of extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Repa Market | | Product Dimensions | 12.8 x 9 x 12.8 cm; 132 g | | Item model number | [NM]-REPA-XXX | | Size | 4 to 5 Inch / 100 to 125 mm | | Colour | Silver | | Style | Reducer/Increaser | | Finish | Galvanized Steel | | Material | Metal | | Shape | Circular | | Item Package Quantity | 1 | | Number of Pieces | 1 | | Measurement System | English/Standard | | Special Features | Easy to Install | | Usage | Commercial/Residential | | Included Components | Galvanized Steel Duct Reducer | | Batteries included? | No | | Batteries Required? | No | | Item Weight | 132 g | ## Product Details - **Size:** 4 to 5 Inch / 100 to 125 mm - **Material:** Metal - **Brand:** Repa Market - **Colour:** Silver - **Item dimensions L x W x H:** 12.8 x 9 x 12.8 centimetres - **Connector type:** Coupling, Reducer - **Thread size:** 1/2 inch - **Exterior finish:** Alloy Steel - **Thread type:** NPT - **Number of pieces:** 1 ## Images ![5" to 4" Inch / 125 to 100 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (5 to 4 Inch) - Image 1](https://m.media-amazon.com/images/I/81xBqb6DV4L.jpg) ## Available Options This product comes in different **Material Type, Size** options. ## Frequently Bought Together - 5" to 4" Inch Duct Reducer Round Fitting Pipe Increaser Made from Galvanized Steel (Drain, Waste and Vent) Reducing Coupling (Metal) - Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC - 5 Inch Duct 5 Feet, Hon&Guan Flexible Dryer Vent Hose For Tight Space Dryer Exhaust Hose Aluminum Duct For Heating and Cooling Ventilation-with 2 Clamps --- ## 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.sn/products/248971241-5-to-4-inch-125-to-100-mm-round-galvanized](https://www.desertcart.sn/products/248971241-5-to-4-inch-125-to-100-mm-round-galvanized) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-03*