---
product_id: 370867944
title: "Duct Adapter, 6” to 4” Ducting Reducer Increaser Cone for Grow Tent Bathroom Kitchen Ventilation Systems"
brand: "ac infinity"
price: "62361CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Ac Infinity"
url: https://www.desertcart.sn/products/370867944-duct-adapter-6-to-4-ducting-reducer-increaser-cone-grow
store_origin: SN
region: Senegal
---

# 6" to 4" duct size adapter High-temp corrosion resistance Galvanized steel with zinc coating Duct Adapter, 6” to 4” Ducting Reducer Increaser Cone for Grow Tent Bathroom Kitchen Ventilation Systems

**Brand:** ac infinity
**Price:** 62361CFA
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game — connect, secure, and conquer every duct challenge!

## Quick Answers

- **What is this?** Duct Adapter, 6” to 4” Ducting Reducer Increaser Cone for Grow Tent Bathroom Kitchen Ventilation Systems by ac infinity
- **How much does it cost?** 62361CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/370867944-duct-adapter-6-to-4-ducting-reducer-increaser-cone-grow)

## Best For

- ac infinity enthusiasts

## Why This Product

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

## Key Features

- • **Secure Grip Design:** Raised lips on the smaller end ensure a tight, slip-resistant fit for ducting or equipment openings.
- • **Compact & Lightweight:** At just over 5 inches long and 340g, it’s easy to install without adding bulk or weight to your setup.
- • **Versatile Application:** Perfect for grow tents, bathroom fans, dust collectors, range hoods, and more—adapt your ventilation system effortlessly.
- • **Seamless Airflow Connection:** Optimizes ventilation efficiency by bridging different duct sizes without airflow loss.
- • **Durable Galvanized Steel Build:** Engineered with zinc-coated steel to resist corrosion and withstand high temperatures for long-lasting performance.

## Overview

The AC Infinity Duct Adapter is a precision-engineered 6" to 4" galvanized steel reducer/increaser cone designed to maintain optimal airflow efficiency in ventilation systems. Featuring corrosion-resistant zinc coating and raised lips for secure duct grip, it’s ideal for grow tents, bathroom fans, dust collectors, and more, ensuring durable, high-temperature resistant performance in a compact form.

## Description

A ducting cone designed for adapting ductwork to equipment like bathroom fans and dust collectors. Maintains airflow efficiency by creating a seamless connection between two different sized duct openings. Raised lips on the smaller opening for extra grip on ducting or your equipment’s duct opening. Galvanized steel body that is corrosion-resistant and can withstand high temperatures. Adapts 6 inches to 4 inches | Product Length: 5.11 inches | Finish: Zinc Coating Product Description A ventilation ducting tool designed to fit different-sized duct hole openings together, connecting smaller ducting to bigger fans and vice versa. Using this duct adapter to connect your ventilation fans to your ducting will help retain your system’s CFM efficiency. It features a raised lip on the reducer end to provide extra grip on ducting or duct openings, while the increaser end features a flat brim to achieve a flush fit. The galvanized steel body is finished with a zinc coating that aids in its resistance to corrosion and high temperatures. Applications The duct adapter is a versatile tool that can be retrofitted with a variety of different-sized ducting and fans. It is commonly paired with bathroom exhaust fans and dust collection units to adapt them to smaller ductwork as a reducer. Other adaptation projects include range hoods, tumble dryers, grow tent ventilation systems, and connecting smaller ducts to bigger ducts. Product Identification Manufacturer AC Infinity Inc. Product Name Duct Reducer 6" to 4" Adapter Product Model AC-SDR64 UPC Code 819137021334 Product and Mounting Dimensions Duct Opening Sizes 6" to 4" Product Length 5.11 in. (13.0 cm) Product Performance and Technical Specs Construction Galvanized Steel Color Metallic Silver Finish Zinc Coating

Review: Got this for my GF... Glowforge, not girlfriend. While it's not an exact tight fit with the tubing for the external fan (also bought separate) If you throw some tape on there it works great. And MUCH cheaper than those that are made specifically for the external fan.
Review: Works as it should

## Features

- A ducting cone designed for adapting ductwork to equipment like bathroom fans and dust collectors.
- Maintains airflow efficiency by creating a connection between two different sized duct openings.
- Raised lips on the smaller opening for extra grip on ducting or your equipment's duct opening.
- Galvanized steel body that is corrosion-resistant and can withstand high temperatures.
- Adapts 6 inches to 4 inches | Product Length: 5 inches | Finish: Zinc Coating

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0842XMBYC |
| ASIN  | B0842XMBYC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #32,904 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #38 in Heating & Cooling Ducting Products |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,172) |
| Customer reviews | 4.5 4.5 out of 5 stars (1,172) |
| Date First Available | 1 March 2020 |
| Date First Available  | 1 March 2020 |
| Item Package Quantity | 1 |
| Item Weight | 340 g |
| Item model number | AC-SDR64 |
| Item model number  | AC-SDR64 |
| Manufacturer | AC Infinity |
| Manufacturer  | AC Infinity |
| Material | Zinc-coated Metal |
| Number Of Pieces | 1 |
| Package Dimensions | 17.3 x 16.99 x 16.79 cm; 340 g |
| Package Dimensions  | 17.3 x 16.99 x 16.79 cm; 340 g |
| Part number | AC-SDR64 |
| Size | 6" to 4" |

## Product Details

- **Brand:** AC Infinity
- **Colour:** Black
- **Connector type:** Adapter
- **Material:** Zinc-coated Metal
- **Size:** 6" to 4"

## Images

![Duct Adapter, 6” to 4” Ducting Reducer Increaser Cone for Grow Tent Bathroom Kitchen Ventilation Systems - Image 1](https://m.media-amazon.com/images/I/41SUtiulYQS.jpg)

## Available Options

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

## Questions & Answers

**Q: Won't this hurt cfm's?**
A: I used this for my smoker shed, so not sure about the cfm's

**Q: How does this effect the rated CFM?**
A: CFM is a measure of volume over time.  
Any time the output is restricted (say 6" down to 4") you can expect a back pressure and a REDUCTION in CFM, even if there is an increase in velocity (speed) of the airflow.  Opening back up this restriction (4" up to 6") will not necessarily increase your CFM, it just decreases the velocity of the airflow and is less restrictive.  It is not possible to increase CFM in this manner, without the introduction of another fan beyond the initial restriction.

**Q: can this be used for stove piping? what is the gauge of the metal?**
A: No it's not stove pipe

**Q: Is this a solid 1 piece Construction?**
A: Yes. Very solid and sturdy.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***N on 1 August 2022*

Got this for my GF... Glowforge, not girlfriend. While it's not an exact tight fit with the tubing for the external fan (also bought separate) If you throw some tape on there it works great. And MUCH cheaper than those that are made specifically for the external fan.

### ⭐⭐⭐⭐ Review
*by T***T on 29 December 2023*

Works as it should

### ⭐⭐⭐⭐⭐ Review
*by B***N on 28 December 2025*

Excellent fit, arrived fast, great quality

## Frequently Bought Together

- AC Infinity Duct Adapter, 6” to 4” Ducting Reducer Increaser Cone for Grow Tent Bathroom Kitchen Ventilation Systems
- AC Infinity CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan with Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-28*