---
product_id: 355553519
title: "4\" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint Set (100mm)"
brand: "repa market"
price: "฿1428"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/355553519-4-inch-duct-connector-flange-plastic-straight-pipe-flange-heating
store_origin: TH
region: Thailand
---

# Precise 3.9" insertion diameter Universal 4" duct compatibility Tool-free, easy installation 4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint Set (100mm)

**Brand:** repa market
**Price:** ฿1428
**Availability:** ✅ In Stock

## Summary

> 🌬️ Connect with Confidence — Upgrade Your Airflow Game!

## 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 Set (100mm) by repa market
- **How much does it cost?** ฿1428 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/355553519-4-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

- • **Durable ABS Plastic Build:** Weather-resistant and sturdy for reliable performance in any climate.
- • **Sleek & Minimalist Design:** Clean white finish blends perfectly with modern HVAC setups and interiors.
- • **Versatile Venting Solution:** Compatible with a wide range of 4-inch circular ducts for home or commercial use.
- • **Precision Fit, Zero Guesswork:** Exact 99mm flange diameter ensures seamless duct connections every time.
- • **Effortless Setup, Instant Upgrade:** Snap-in design means no glue or sealants—get your ventilation system running fast.

## Overview

This 4-inch plastic duct connector flange by Repa Market offers precise dimensions and a durable ABS plastic build, designed for easy, glue-free installation. Compatible with standard 4-inch ventilation ducts, it’s ideal for heating, cooling, and extractor fan systems in both residential and commercial settings. Lightweight and weather-resistant, it ensures reliable, stylish duct connections that fit perfectly every time.

## Description

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

## Features

- Precise dimensions: Flange insertion diameter: 3.9 inch / 99mm, Wall plate dimensions: 5.91 x 5.91 inch / 150mm x 150mm, Screw hole spacing: 5.31 inch x 5.31 inch / 135mm x 135mm.
- White, simple and stylish // ABS Plastic rigid ducting is perfect for DIY and Trade use.
- Easy to install, compatible with 4 Inch tube. Connect ducting components easily with durable plastic flanges for reliable connections. Easily connected to various types of circular ventilation air ducts.
- Perfectly suited for ducting your Tumble Dryer, Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood.
- We always provide you with premium equipments. Can be installed and used in any climate. The elements can be connected without glues and sealants.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Repa Market |
| Product Dimensions | 15 x 6.2 x 15 cm; 70 g |
| Size | 100 mm |
| Colour | White |
| Material | Plastic |
| Shape | Square |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Easy to install |
| Usage | Commercial/Living Area |
| Included Components | Connection flange |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 70 g |

## Product Details

- **Size:** 100 mm
- **Material:** Plastic
- **Brand:** Repa Market
- **Colour:** White
- **Item dimensions L x W x H:** 15 x 6.2 x 15 centimetres
- **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 Set (100mm) - Image 1](https://m.media-amazon.com/images/I/41FcfTeqvkL.jpg)
![4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint Set (100mm) - Image 2](https://m.media-amazon.com/images/I/71KEHhemTaL.jpg)
![4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint Set (100mm) - Image 3](https://m.media-amazon.com/images/I/817yNUJai7L.jpg)
![4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint Set (100mm) - Image 4](https://m.media-amazon.com/images/I/71JuyjkHbAL.jpg)
![4" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint Set (100mm) - Image 5](https://m.media-amazon.com/images/I/71lU+dXgarL.jpg)

## Available Options

This product comes in different **Size Name** 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)
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- Cook N Home 5/16" ID 7/16" OD Food Grade Tube, 10 Ft

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-30*