---
product_id: 175583033
title: "4\" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint (100mm)"
brand: "repa market"
price: "4118 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/175583033-4-inch-duct-connector-flange-plastic-straight-pipe-flange-heating
store_origin: IS
region: Iceland
---

# Precise 3.9" insertion diameter Pre-drilled holes for easy mounting Durable ABS plastic, -5°C to 60°C 4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint (100mm)

**Brand:** repa market
**Price:** 4118 kr
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with confidence — your airflow’s new best friend!

## Quick Answers

- **What is this?** 4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint (100mm) by repa market
- **How much does it cost?** 4118 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/175583033-4-inch-duct-connector-flange-plastic-straight-pipe-flange-heating)

## 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

- • **Leak-Minimizing Design:** Engineered to reduce air leaks, boosting airflow efficiency and cutting energy waste.
- • **Tool-Ready Installation:** Pre-drilled screw holes let you mount quickly without glue or sealants—DIY or pro-friendly.
- • **Universal Compatibility:** Fits a wide range of circular ventilation ducts—perfect for commercial and home setups.
- • **Precision Fit, Zero Guesswork:** Exact 3.9" flange diameter ensures seamless duct connections every time.
- • **Built to Last, Built to Perform:** Rigid ABS plastic withstands temperature swings from -5°C to 60°C for reliable HVAC operation.

## Overview

This 4" plastic duct connector flange from Repa Market offers precise dimensions and robust ABS construction for durable, leak-resistant HVAC connections. Featuring pre-drilled holes for quick, glue-free installation, it fits standard circular ducts and operates reliably between -5°C and 60°C, making it ideal for both commercial and residential ventilation systems.

## Description

4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint (100mm)

## 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 |
|---------------|-------|
| Size | 4 Inch |
| Material | Plastic |
| Brand | Repa Market |
| Color | White |
| Item dimensions L x W x H | 5.91 x 2.44 x 5.91 inches |
| Connector Type | Coupling |
| Thread Size | 4 inch |
| Exterior Finish | ABS |
| Thread Type | NPT |
| Number of Pieces | 1 |
| Manufacturer | Repa Market |
| Item Weight | 2.46 ounces |
| Product Dimensions | 5.91 x 2.44 x 5.91 inches |
| Shape | Square |
| Item Package Quantity | 1 |
| Special Features | Easy to install |
| Usage | Commercial/Living Area |
| Included Components | Connection flange |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 4 Inch
- **Material:** Plastic
- **Brand:** Repa Market
- **Color:** White
- **Item dimensions L x W x H:** 5.91 x 2.44 x 5.91 inches
- **Connector Type:** Coupling
- **Thread Size:** 4 inch
- **Exterior Finish:** ABS
- **Thread Type:** NPT
- **Number of Pieces:** 1

## Images

![4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint (100mm) - Image 1](https://m.media-amazon.com/images/I/41FcfTeqvkL.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

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**Shop now:** [https://www.desertcart.is/products/175583033-4-inch-duct-connector-flange-plastic-straight-pipe-flange-heating](https://www.desertcart.is/products/175583033-4-inch-duct-connector-flange-plastic-straight-pipe-flange-heating)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-27*