---
product_id: 541175036
title: "HVAC Plenum Ceiling Box 12X12X10 (12\"X12\" Square to 10\" Round) with Drywall Flange - Connects to Vent Register Diffuser, Galvanized Steel Metal C-Box Duct, Airflow Conditioning Ceiling Registers"
brand: "the sheet metal kid"
price: "₪487"
currency: ILS
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.il/products/541175036-hvac-plenum-ceiling-box-12x12x10-12x12-square-to-10-round
store_origin: IL
region: Israel
---

# Optimal airflow 26-gauge steel Easy installation HVAC Plenum Ceiling Box 12X12X10 (12"X12" Square to 10" Round) with Drywall Flange - Connects to Vent Register Diffuser, Galvanized Steel Metal C-Box Duct, Airflow Conditioning Ceiling Registers

**Brand:** the sheet metal kid
**Price:** ₪487
**Availability:** ✅ In Stock

## Summary

> 💡 Elevate Your Airflow Game!

## Quick Answers

- **What is this?** HVAC Plenum Ceiling Box 12X12X10 (12"X12" Square to 10" Round) with Drywall Flange - Connects to Vent Register Diffuser, Galvanized Steel Metal C-Box Duct, Airflow Conditioning Ceiling Registers by the sheet metal kid
- **How much does it cost?** ₪487 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/541175036-hvac-plenum-ceiling-box-12x12x10-12x12-square-to-10-round)

## Best For

- the sheet metal kid enthusiasts

## Why This Product

- Trusted the sheet metal kid brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Integration:** Designed to fit perfectly with both metal and flexible ductwork.
- • **Precision Engineering:** Crafted from high-quality 26-gauge galvanized steel for durability.
- • **Customer-Centric Support:** Satisfaction guaranteed with responsive customer service.
- • **Enhanced Airflow Control:** Install a manual volume damper for tailored airflow management.
- • **User-Friendly Installation:** Includes drywall flange for easy finishing and secure attachment.

## Overview

The HVAC Plenum Ceiling Box 12X12X10 is a premium duct fitting designed for efficient air distribution in your home. Made from durable 26-gauge galvanized steel, it features a drywall flange for easy installation and is compatible with both metal and flexible duct systems. This ceiling box ensures optimal airflow control and is backed by a commitment to customer satisfaction.

## Description

C-BOX HVAC PLENUM CEILING BOX ROUND-CONNECTSOur HVAC Plenum Ceiling Register Box for home HVAC Duct Vent. Works with metal duct pipe or flexible ductwork. Once it's in position can be sealed with a duct sealer. Our premium HVAC Duct Ceiling Register Boxes are the perfect fitting to use when you need to put a register in the ceiling to supply air in any room. All Ceiling Boxes are manufactured from the highest quality galvanized steel. 26 gauge sheet metal construction with drywall flange. The sizes listed are the box opening widths, then the round size as the last dimension. They have a plaster ground flange attached for easy finishing to your plaster or drywall. Our C-Boxes are built with a flange all the way around the square portion which can be used for attachment or folded over.DUCT INSTALLATION TIPS & TRICKSAttach the ceiling box securely to the ceiling framing with nails or screws. In many applications where your duct is laying on the ceiling members, you may want to attach a 90-degree elbow adjusted to a 45-degree angle or possibly even a 45-degree adjustable elbow to the round collar on the ceiling box and then attach your Flexible Duct or Sheet Metal Duct to the elbow. Retaining ridge around inlet neck to ensure a snug fit to the flexible duct. Drywall flange for secure installation and serves as an anchor point for register screws.Call us with your hole size and duct size so we can help (707) 999-7710 SATISFACTIONWe ensure that you will be happy with your purchase. If you're not impressed with our Duct C-Box, you can contact us at any time, we will resolve your problem until you are satisfied.Do not miss the opportunity, simply click “ADD TO CART” and pick up your Order Today!

## Features

- ________ ________________ ______________ ______: Our HVAC Plenum Ceiling Register Box for home HVAC Duct Vent. Works with metal duct pipe or flexible ductwork. Once it's in position can be sealed with a duct sealer. Our premium HVAC Duct Ceiling Register Boxes are the perfect fitting to use when you need to put a register in the ceiling to supply air in any room.
- ________-______________ __________ __________: All Ceiling Boxes are manufactured from the highest quality galvanized steel. 26 gauge sheet metal construction with drywall flange. The sizes listed are the box opening widths, then the round size as the last dimension. They have a plaster ground flange attached for easy finishing to your plaster or drywall. Your diffuser or register will be slightly larger than this.
- ________ ________________________ ________ & ____________: Attach the ceiling box securely to the ceiling framing with nails or screws. In many applications where your duct is laying on the ceiling members, you may want to attach a 90-degree elbow adjusted to a 45-degree angle or possibly even a 45-degree adjustable elbow to the round collar on the ceiling box and then attach your Flexible Duct or Sheet Metal Duct to the elbow.
- ______ ________________________ ____________: The best way to regulate airflow is to install a manual volume damper in the duct run. We also have a full line of ceiling registers and HVAC fittings. This will provide the best possible airflow for the efficiency of your system. We recommend that you seal the seams with a duct sealant after installation to prevent any air leakage; this will increase the efficiency of your heating and air conditioning system and reduce your utility bills.
- ______% __________________ ________________________: We are willing for the satisfaction of our customers because customer satisfaction is our first priority. If you have any kind of problem regarding our product we will fully co-operate in solving your problem. You should never feel any hesitation in contacting us. If you do not satisfy with our products, then please question us we will happily answer your question.

## Images

![HVAC Plenum Ceiling Box 12X12X10 (12"X12" Square to 10" Round) with Drywall Flange - Connects to Vent Register Diffuser, Galvanized Steel Metal C-Box Duct, Airflow Conditioning Ceiling Registers - Image 1](https://m.media-amazon.com/images/I/61iQQMthJoS.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Exactly as advertised
  

*by D***E on Reviewed in the United States on May 5, 2023*

Perfect fit

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Made correctly
  

*by S***S on Reviewed in the United States on April 1, 2023*

It is exactly what was ordered. Arrived undamaged.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Dimensions are a little misleading
  

*by R***S on Reviewed in the United States on March 26, 2018*

This is 12" if you're measuring the mounting fins or internal box dimensions. The external box dimensions are 12.25"x12.25". That didn't make a difference for my needs, but it could be enough if you're expecting precision. What matters here is that the box is sturdy, and the duct mounting diameter is a perfect 8". What I didn't like is that the box with the fins is indeed too wide to fit between 16" studs if you already drywall up, so this is aimed more for new construction I think. I got around this by bending the vertical fins back. There's enough support from the horizontal supports that it's not going to move.Oh and the edges aren't sharp! That's a good thing. I expected this to cut me if I weren't careful, but I had no trouble.

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-03-03*