---
product_id: 309271219
title: "Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in"
brand: "ecopro vent"
price: "€ 28.37"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/309271219-eccentric-reducer-reaser-for-duct-connecting-connect-straight-duct-flex
store_origin: ES
region: Spain
---

# 4" to 5" size Heat-resistant 5°F to 160°F Easy DIY assembly Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in

**Brand:** ecopro vent
**Price:** € 28.37
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence!

## Quick Answers

- **What is this?** Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in by ecopro vent
- **How much does it cost?** € 28.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/309271219-eccentric-reducer-reaser-for-duct-connecting-connect-straight-duct-flex)

## Best For

- ecopro vent enthusiasts

## Why This Product

- Trusted ecopro vent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Design:** Crafted from high-quality plastic to withstand HVAC demands.
- • **Quick Assembly:** Effortlessly press on and secure with glue, tape, or clamps.
- • **Compact & Lightweight:** Weighing only 1.9 ounces, it's easy to handle and install.
- • **Perfect for All Spaces:** Ideal for heating, cooling, and exhaust in kitchens and bathrooms.
- • **Versatile Duct Connection:** Seamlessly connect straight and flex ducts for optimal airflow.

## Overview

The ECOPRO VENT 4 to 5 Inch Eccentric Reducer or Increaser is a versatile duct connector designed for seamless integration between straight and flex ducts. With heat resistance from 5°F to 160°F, this lightweight and durable plastic connector is perfect for HVAC systems, ensuring efficient airflow in kitchens, bathrooms, and beyond. Quick and easy to assemble, it’s the ideal solution for any DIY enthusiast.

## Description

Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in

## Features

- Ventilation duct increaser/reducer: 4" to 5" inch
- External reducer dimensions: 5" and 4" inch
- Quick and easy to assemble - DIY Press on chosen duct - flex or straight - and by using montage glue. tape or steel clamps tighten the connection.
- perfect for Heating. cooling or air conditioning - HVAC. bathroom and kitchen air exhaust.
- Heat-resistant from: 5 °F to 160 °F.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | ECOPRO VENT |
| Item Weight | 1.9 ounces |
| Package Dimensions | 5.56 x 4.96 x 2.72 inches |
| Color | Plastic |
| Voltage | 120 Volts |
| Material Type | Plastic |
| Batteries Required? | No |

## Images

![Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in - Image 1](https://m.media-amazon.com/images/I/710iPCwoWfL.jpg)
![Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in - Image 2](https://m.media-amazon.com/images/I/71KdN4WgSFS.jpg)
![Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in - Image 3](https://m.media-amazon.com/images/I/71WU-SnvnLS.jpg)
![Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in - Image 4](https://m.media-amazon.com/images/I/71tVva0x1oS.jpg)
![Eccentric Reducer reaser for Duct Connecting. Connect Straight Duct with Flex Duct. Duct Fan or Dryer Vent Connector. HVAC. Heating. Cooling and Bathroom Applications. Plastic 4-6in - Image 5](https://m.media-amazon.com/images/I/71gtjNm1J6S.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: What are the exact dimensions of the vent duct in width and length? For the 5 in and 4 in side?**
A: Overall length is 3-1/3”. Larger hole width is 4-7/8” and small hole width is 3-7/8”.

**Q: Can this be used for range hood ducting?**
A: No it’s made of plastic and not designed for high temperatures.

**Q: I need to know the measurements of each end. I bought similar items with one end at 4.9" & the other end saying it will work for a 4" hose but doesn't**
A: Smaller end measures 3-3/4” inside diameter, 3-7/8” outside diameter. Larger size hole measures 4-3/4” inside diameter and 4-7/8” outside diameter

**Q: Can you use this for a dryer?**
A: Yes, it can used go dryer exhaust.

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-14*