---
product_id: 602266788
title: "Tandefio 6\" Dia Rectangular to Round Duct Transition 3-1/4\" x 10\" to 6\" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent"
brand: "tandefio"
price: "389 Lei"
currency: RON
in_stock: true
reviews_count: 10
category: "Tandefio"
url: https://www.desertcart.ro/products/602266788-tandefio-6-dia-rectangular-to-round-duct-transition-3-1
store_origin: RO
region: Romania
---

# Smooth interior reduces wind resistance Fits 3-1/4" x 10" to 6" round ducts Durable galvanized rust-proof steel Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent

**Brand:** tandefio
**Price:** 389 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your airflow game with seamless style and strength!

## Quick Answers

- **What is this?** Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent by tandefio
- **How much does it cost?** 389 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/602266788-tandefio-6-dia-rectangular-to-round-duct-transition-3-1)

## Best For

- tandefio enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Quick setup with standard screws and foil tape—upgrade your system without hassle.
- • **Optimize Airflow Efficiency:** Smooth interior design minimizes wind resistance, boosting ventilation performance.
- • **Versatile Ventilation Upgrade:** Ideal for microwave vents, exhaust fans, and dryer vent covers—future-proof your space.
- • **Precision Fit for HVAC Mastery:** Seamlessly connects rectangular and round ducts for flawless airflow integration.
- • **Built to Last, Built to Impress:** Galvanized steel construction ensures rust-free durability indoors and out.

## Overview

The Tandefio 3-1/4" x 10" x 6" galvanized rectangular to round duct transition is a robust HVAC connector designed for 3-1/4" x 10" rectangular and 6" round ducts. Crafted from rust-resistant galvanized steel, it ensures long-lasting durability and smooth airflow with reduced wind resistance. Easy to install and perfect for upgrading ventilation systems in both residential and commercial settings.

## Description

Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent - desertcart.com

Review: Good product! - It’s good. To be honest I just got it because my dad been wanting one.
Review: Great fit - Put in a new hood fan in our kitchen and removed the over the stove microwave. Had to run all new from the hood to outside. Mounted up perfectly to the new hood and 6” hose to lead outside.

## Features

- Package Content: the package comes inclusive of 1 single piece of our reliable microwave vent kit; This accessory is instrumental in upgrading your existing ventilation system or setting up a new one, assuring you wouldn't need frequent replacements owing to its quality build
- Efficient Ventilation Solution: the rectangular to round duct serves as a versatile connector for your exhaust fan, dryer vent cover, and vent seal that dramatically boosts the effectiveness of your home or commercial space's ventilation system; Its dimensions are approximately 3-1/4 x 10 x 6 inches, which is ideal for 3-1/4 x 10-inch ducts and 6-inch diameter round ducts, and the length of the rectangular vent is 10 inches/ 254 mm, not including the edges
- Sturdy Galvanized Construction: constructed with a robust, strong galvanized plate, our galvanized round transition promises longevity and good reliability; Its rust proof nature nicely lends itself for both indoor and outdoor usage, protecting against adverse weather conditions and facilitating seamless ventilation throughout the year; Despite its strength, it doesn't compromise on its aesthetics, sporting a sleek silver finish
- Reduces Wind Resistance: equipped with a smooth interior design, our galvanized duct connector significantly reduces wind resistance, contributing to a more efficient discharge of air; It ensures smooth airflow through various parts of the ventilation project, providing you with a comprehensive and effective ventilation solution
- Convenience of Installation: the duct rectangular to round comes with an easy installation process; Wipe it clean when using, then connect one end to the hose and fix it with aluminum foil tape, another end can be fixed on the square pipe with screws, finally, install the clamp and tighten the screws (Note: the installation accessories are not included); Note: There may be scratches and compression at the interface due to transportation and packaging

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CP74YSZ3 |
| Batteries Required? | No |
| Best Sellers Rank | #71,035 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #104 in HVAC Ducting |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (117) |
| Date First Available | November 30, 2023 |
| Item Package Quantity | 1 |
| Item Weight | 1.32 pounds |
| Item model number | CLO-Tandefio-0356 |
| Manufacturer | Tandefio |
| Part Number | CLO-Tandefio-0356 |
| Product Dimensions | 13.7 x 7.87 x 7.08 inches |
| Size | 6 Inch |

## Images

![Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent - Image 1](https://m.media-amazon.com/images/I/61MBeGRAenL.jpg)
![Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent - Image 2](https://m.media-amazon.com/images/I/71ANcxk9e9L.jpg)
![Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent - Image 3](https://m.media-amazon.com/images/I/51n9bLTu7AL.jpg)
![Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent - Image 4](https://m.media-amazon.com/images/I/7183kPOFD5L.jpg)
![Tandefio 6" Dia Rectangular to Round Duct Transition 3-1/4" x 10" to 6" Galvanized Transition to Round HVAC Duct Adapter Microwave Vent Kit for Range Hood, Exhaust Vent - Image 5](https://m.media-amazon.com/images/I/718IYXMDZ7L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product!
*by F***A on April 24, 2025*

It’s good. To be honest I just got it because my dad been wanting one.

### ⭐⭐⭐⭐⭐ Great fit
*by 5***Y on April 9, 2026*

Put in a new hood fan in our kitchen and removed the over the stove microwave. Had to run all new from the hood to outside. Mounted up perfectly to the new hood and 6” hose to lead outside.

### ⭐⭐⭐⭐⭐ Quality part
*by E***L on April 20, 2026*

This part is the real deal and heavy duty metal. Not flimsy at all. Great find

## Frequently Bought Together

- Tandefio 3-1/4" x 10" x 6'', 6" Diameter Galvanized Rectangular to Round Duct Transition Microwave Vent Kit Round Transition Vent Adapter for Connecting HVAC Range Hood Ducting Fittings
- FRESH SPEED 6-Inch External Extractor Wall Vent Cushioned Non Return Flap

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-04-23*