--- product_id: 175583033 title: "Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems" brand: "repa market" price: "€ 32.59" currency: EUR in_stock: true category: "Repa Market" url: https://www.desertcart.hr/products/175583033-repa-market-4-inch-duct-connector-flange-plastic-round-male store_origin: HR region: Croatia --- # 3.9" precise flange diameter Pre-drilled holes spaced 5.31" apart Durable ABS plastic, -5°C to 60°C Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems **Brand:** repa market **Price:** € 32.59 **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your airflow game with precision and ease! ## Quick Answers - **What is this?** Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems by repa market - **How much does it cost?** € 32.59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/175583033-repa-market-4-inch-duct-connector-flange-plastic-round-male) ## 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 - • **Universal Compatibility:** Designed to connect effortlessly with various 4-inch round ventilation ducts, streamlining your HVAC setup. - • **Quick & Secure Installation:** Pre-drilled holes with 5.31" spacing allow fast, glue-free mounting on walls or ceilings—perfect for pros and DIYers alike. - • **Robust ABS Plastic Durability:** Engineered to withstand temperatures from -5°C to 60°C, delivering long-lasting performance in diverse environments. - • **Energy-Saving Airflow Optimization:** Minimizes air leaks to enhance comfort and reduce energy costs—because every degree counts. - • **Precision Fit for Seamless Airflow:** Exact 3.9" flange diameter ensures airtight duct connections, reducing leaks and boosting HVAC efficiency. ## Overview The Repa Market 4 Inch Duct Connector Flange is a high-quality ABS plastic HVAC adapter designed for 4-inch round ducts. Featuring precise dimensions and pre-drilled holes for easy, secure installation without adhesives, it ensures airtight connections that optimize airflow and energy efficiency. Built to endure temperatures from -5°C to 60°C, this flange is ideal for both professional and DIY ventilation projects. ## Description Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems - desertcart.com ## Features - Precise dimensions: Flange insertion diameter: 3.9" inches, Wall plate dimensions: 5.91" x 5.91" inches, Screw hole spacing: 5.31" inches. - Connectivity: Connect ducting components easily with durable plastic flanges for reliable connections. Easily connected to various types of circular ventilation air ducts. - Robust Construction: Made from quality/rigid ABS Plastic for long-lasting performance. Allowable Temperature Range from -5°C up to +60°C - Easy Installation: The elements can be connected without glues and sealants. Product has Pre-drilled holes for a firm and more secure attachment to the wall, ceiling or any other surface. User-friendly design for quick and hassle-free setup and also perfect for DIY and Trade use - Improved Efficiency: Minimize air leaks and maximize airflow for better comfort and energy savings. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0822VB3F7 | | Best Sellers Rank | #33,217 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in HVAC Ducting | | Brand Name | Repa Market | | Color | White | | Connector Type | Coupling | | Customer Reviews | 4.5 4.5 out of 5 stars (886) | | Exterior Finish | ABS | | Included Components | Connection flange | | Item Dimensions | 5.91 x 2.44 x 5.91 inches | | Manufacturer | Repa Market | | Material Type | Plastic | | Number of Pieces | 1 | | Size | 4 Inch | | Thread Size | 4 inch | | Thread Type | NPT | | Unit Count | 1 Count | ## Product Details - **Brand:** Repa Market - **Color:** White - **Connector Type:** Coupling - **Exterior Finish:** ABS - **Item dimensions L x W x H:** 5.91 x 2.44 x 5.91 inches - **Material:** Plastic - **Number of Pieces:** 1 - **Size:** 4 Inch - **Thread Size:** 4 inch - **Thread Type:** NPT ## Images ![Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems - Image 1](https://m.media-amazon.com/images/I/41FcfTeqvkL.jpg) ![Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems - Image 2](https://m.media-amazon.com/images/I/71KEHhemTaL.jpg) ![Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems - Image 3](https://m.media-amazon.com/images/I/817yNUJai7L.jpg) ![Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems - Image 4](https://m.media-amazon.com/images/I/610-ZCgHIXL.jpg) ![Repa Market 4 Inch Duct Connector Flange – Plastic Round Male Fit Vent Pipe Adapter – Wall Plate HVAC Exhaust & Intake Coupling – Airflow Fitting for Ventilation and Cooling Systems - Image 5](https://m.media-amazon.com/images/I/71lU+dXgarL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Do both sides of this have flanges for house connection?** A: Yes it has the flange on both sides. Due to the picture I assumed it was only one sided as I needed, and had to cut off the other side for use. **Q: What are the dimensions? Size of square part & how long is the tube part.** A: Flange of the 4” connector is 5-7/8” square **Q: Is the spec diameter for id or od? looking at the 5in flange.** A: Inside diameter. **Q: Has anyone seen this style in metal?** A: Yes at lowes ## Frequently Bought Together - 4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint (100mm) - HYDROWE Dryer Vent Hose Flexible 4 Inch 8 Feet PVC Aluminum Foil Ducting Insulated Dryer Vent Hose for HVAC Ventilation with 2 Clamps (4in 8ft) - Cook N Home 5/16" ID 7/16" OD Food Grade Tube, 10 Ft --- ## 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.hr/products/175583033-repa-market-4-inch-duct-connector-flange-plastic-round-male](https://www.desertcart.hr/products/175583033-repa-market-4-inch-duct-connector-flange-plastic-round-male) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-05*