---
product_id: 380904307
title: "Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems"
brand: "kikerike"
price: "₱2044"
currency: PHP
in_stock: true
reviews_count: 13
category: "Kikerike"
url: https://www.desertcart.ph/products/380904307-duct-reducter-6-to-4-air-ducting-reducer-increaser-air
store_origin: PH
region: Philippines
---

# Optimized airflow efficiency 6" to 4" precise fit Galvanized steel durability Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems

**Brand:** kikerike
**Price:** ₱2044
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game with precision and durability!

## Quick Answers

- **What is this?** Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems by kikerike
- **How much does it cost?** ₱2044 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/380904307-duct-reducter-6-to-4-air-ducting-reducer-increaser-air)

## Best For

- kikerike enthusiasts

## Why This Product

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

## Key Features

- • **Tool-Free Installation:** Quick and easy setup saves time—no special tools required.
- • **Premium Galvanized Steel:** Built to last with corrosion-resistant alloy steel for long-term reliability.
- • **Seamless Size Transition:** Effortlessly adapts 6-inch ducts to 4-inch, ensuring perfect compatibility.
- • **Maximized Airflow Efficiency:** Maintains optimal ventilation performance by minimizing airflow loss.
- • **Universal Ventilation Compatibility:** Ideal for bathroom fans, kitchen hoods, HVAC systems, and more.

## Overview

This galvanized steel duct reducer adapter converts 6-inch duct openings to 4-inch, designed for seamless integration in HVAC, bathroom, and kitchen ventilation systems. Engineered to maintain airflow efficiency while offering easy installation and robust corrosion resistance, it’s a must-have for professionals and DIY enthusiasts aiming for optimal ventilation performance.

## Description

Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems - desertcart.com

Review: Exact Size OD 6" - Exact size. Does not slide into fan housing duct. Although this doesn't work for me, the product is metal and good quality.
Review: Well built - Awesome product, couldn't find in stores. Worked great

## Features

- 【Size】Made of galvanized steel. Adapts 6 inches to 4 inches. Round Ducting Adaptor
- 【Widely Application】Designed for bathroom extractor fans, HVAC systems, inline ventilators, cooker hoods, hydroponics, kitchen
- 【Adventages】Maintains airflow efficiency by creating a connection between two different sized duct openings
- 【How to Use】The solid duct reducer or increaser can be used when connecting two different solid or flexible ducts or ducts to ventilators, 6 to 4 inch, or vice versa
- 【Easy to Install】Put it in the two ducting, easy to install the air duct reducer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099KFMMQ4 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #12,637 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in HVAC Ducting |
| Color | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (591) |
| Date First Available | July 15, 2021 |
| Item Weight | 7 ounces |
| Manufacturer | Kikerike |
| Material | Alloy Steel |
| Number Of Pieces | 1 |
| Package Dimensions | 6.26 x 6.14 x 5.18 inches |
| Part Number | DA-6in to 4in |
| Size | 6" to 4" |

## Product Details

- **Size:** 6" to 4"
- **Material:** Alloy Steel
- **Brand:** Kikerike
- **Color:** Silver
- **Connector Type:** Reducer
- **Exterior Finish:** Galvanized Steel
- **Thread Type:** NPT
- **Item Weight:** 0.2 Kilograms
- **Number of Pieces:** 1
- **Manufacturer:** Kikerike

## Images

![Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems - Image 1](https://m.media-amazon.com/images/I/61NkpXgff2L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exact Size OD 6"
*by A***R on February 20, 2026*

Exact size. Does not slide into fan housing duct. Although this doesn't work for me, the product is metal and good quality.

### ⭐⭐⭐⭐⭐ Well built
*by C***Y on January 15, 2026*

Awesome product, couldn't find in stores. Worked great

### ⭐⭐⭐⭐⭐ Good fit
*by L***Y on November 14, 2025*

Perfect fit for my application. Very sturdy product. Packaged good.

## Frequently Bought Together

- Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

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**Shop now:** [https://www.desertcart.ph/products/380904307-duct-reducter-6-to-4-air-ducting-reducer-increaser-air](https://www.desertcart.ph/products/380904307-duct-reducter-6-to-4-air-ducting-reducer-increaser-air)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-15*