---
product_id: 532636021
title: "BUILDMART - 12\" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart"
brand: "buildmart"
price: "€ 56.86"
currency: EUR
in_stock: true
reviews_count: 3
category: "Buildmart"
url: https://www.desertcart.ie/products/532636021-buildmart-12-linear-slot-diffuser-1-slot-single-slot-black
store_origin: IE
region: Ireland
---

# paintable matte black finish 12" linear slot, fits standard ducts 100% commercial-grade aluminum BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart

**Brand:** buildmart
**Price:** € 56.86
**Availability:** ✅ In Stock

## Summary

> 🖤 Upgrade your airflow game with sleek, stealthy style!

## Quick Answers

- **What is this?** BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart by buildmart
- **How much does it cost?** € 56.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/532636021-buildmart-12-linear-slot-diffuser-1-slot-single-slot-black)

## Best For

- buildmart enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Retrofit Upgrade:** Fits traditional duct openings perfectly for hassle-free replacement and instant style boost.
- • **Versatile Airflow Solution:** Works as both supply and return vent cover with optimal airflow (93 CFM, 9.8 ft/s velocity).
- • **Built to Last, Designed to Impress:** Durable solid aluminum construction ensures longevity and easy maintenance.
- • **Architectural Elegance Meets Function:** Sleek linear slot design elevates any modern space—ceiling, wall, or floor.
- • **Invisible Installation, Visible Impact:** Hidden screw mounting preserves clean aesthetics—no front screws ruining the look.

## Overview

The BUILDMART 12" Linear Slot Diffuser is a premium black decorative aluminum air vent cover designed for modern heating and cooling systems. Crafted from commercial-grade solid aluminum, it offers a durable, paintable finish and fits standard duct openings for easy retrofit on ceilings, walls, or floors. With a patented design featuring a single linear slot, it supports both supply and return airflow at 93 CFM and installs invisibly with hidden screws, making it the perfect blend of architectural style and functional performance.

## Description

BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - desertcart.com

Review: Register modern - Use the MR RV to get more cabinet space good quality nice register
Review: Nice purchase - Goes great in upgrade to make slot look quality. Easy to install.

## Features

- Commercial grade solid aluminum with modern architectural design for ceilings, walls, and floors. This vent cover was designed to be decorative and not structural. You can use this as a floor vent cover, but it is not designed to support weight, adding any type of weight is not recommended. This model can be used as a supply vent cover and return vent cover - This is a non-filter model
- Cfm: 93 ft3/min - effective velocity: 9.8 ft/s; neck: 11 7/8" x 1 5/8" - face: 13 1/4" x 3 1/16" (The neck is the section that goes into the vent hole while the face is what will actually cover)
- Designed to elevate any space, our modern AC vent covers are perfect for bathrooms, kitchens, living rooms, offices, and commercial settings. Whether you're remodeling or upgrading, they add sleek, architectural value to walls, ceilings, and floors.
- *This is a design and utility patent pending product* We make sizes from 12" to 72" linear slot diffuser ac vent covers for the modern day home
- We have over 70 standard vent cover sizes to replace your traditional looking grills. We also have over 40 linear slot diffuser sizes with their matching plenum box. All models are in stock ready to ship in both white and black colors – Our models are also paintable.
- All vent cover sizes can be used as both supply and return grilles. Currently our decorative air vent covers are non-filtered models. This will work perfectly if you have your filter in the machine.
- A standard linear slot diffuser is a modern looking decorative air vent cover that fits on a traditional air exit and replaces the traditional looking grills. They have a beautiful linear slot diffuser; they are easy to replace since it is retrofit to the traditional vent cover sizes. Enjoy the incredible looks, the durability since it is 100% aluminum, and they are also very easy to clean. A linear slot diffuser is a linear air exit or vent cover with a long linear look that you usually find in hotels and modern houses. The standard linear slot diffusers and the linear slot diffusers can both be used for remodels and new construction.
- The size that you need to know to buy this vent cover, or any other vent cover is by measuring the air duct opening (the plenum box opening) and not the face size or the vent cover. We recommend you remove the old air vent cover and measure the size of the air duct opening. You do not need to take into consideration the face size of the vent cover. The important measurement is the interior duct opening size. Example: A traditional vent cover size can have a face size of 14x8, and neck of a little less than a 12x6. Your air duct opening should measure 12x6, so you purchase a 12x6. Vent cover dimensions are categorized by the neck and not by the face of the air vent cover.
- The method of installation of our modern air ac vent cover is hidden through the pre-drilled holes inside of the diffuser, which can be accessed by opening the dampers and using a drill with a six-inch extension to screw it into place. Please find attached our instructional videos. This way we avoid having a front drill screw and ruin the esthetics of the product.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BWDV1BG3 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #286,058 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,551 in Registers, Grilles & Vents |
| Color | Black |
| Customer Reviews | 5.0 5.0 out of 5 stars (15) |
| Date First Available | February 21, 2023 |
| Included Components | Screws |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 11.7 ounces |
| Item model number | 12x1SxB |
| Manufacturer | Texas Buildmart |
| Material | Aluminum |
| Part Number | 12x1SxB |
| Product Dimensions | 14 x 4 x 2 inches |

## Images

![BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - Image 1](https://m.media-amazon.com/images/I/21262TZngFL.jpg)
![BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - Image 2](https://m.media-amazon.com/images/I/21pVpDxatOL.jpg)
![BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - Image 3](https://m.media-amazon.com/images/I/31GywJfh8WL.jpg)
![BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - Image 4](https://m.media-amazon.com/images/I/41mQGavyK3L.jpg)
![BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - Image 5](https://m.media-amazon.com/images/I/41pRQKR7P6L.jpg)

## Questions & Answers

**Q: What does a Linear Slot Diffuser do? What are Linear Slot Diffusers used for? What is a Slot Diffuser?**
A: Linear Slot Diffusers are Vent Covers that are Linear and the “face” of a vent. The Air Conditioning unit distributes air throughout the home/building via the air duct tubing and delivers hot/cold air to each room that the vent is in.

**Q: Are Linear Slot Diffusers good?**
A: Linear Slot Diffusers are the “face” of the vent, often referred to as a Vent Cover. Linear Slot Diffusers are good in the sense that they are aesthetically pleasing to look at and give a modern feel to any room they are in.

**Q: How do I choose a Linear Slot Diffuser?**
A: For New Builds, we always recommend checking with your HVAC Contractor to confirm the CFM’s each room will need and then selecting your Linear Slot Diffusers based on the CFM’s

**Q: What sizes do vent covers come in? What is the standard vent cover size?**
A: Vent Covers, Grilles, Registers, Diffusers come in different sizes. The most Standard Sizes being 10” x 6” and 12” x 6” and 8” x 4” - You will find at least one of these in most homes.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Register modern
*by T***. on July 27, 2025*

Use the MR RV to get more cabinet space good quality nice register

### ⭐⭐⭐⭐⭐ Nice purchase
*by J***R on July 7, 2025*

Goes great in upgrade to make slot look quality. Easy to install.

### ⭐⭐⭐⭐⭐ Sleek and Modern
*by A***N on March 9, 2025*

Very nice vent cover. I needed a register cover/diffuser for the toe kick of my new vanity. The first one I bought was too tall. This diffuser fits nicely. I was able to just cut a hole in the 3/4 inch wood toe kick and slide the diffuser in. It doesn't even need the mounting screws. It looks sleek and minimalist -- a good match for a Shaker style vanity.

## Frequently Bought Together

- BUILDMART - 12" Linear Slot Diffuser - (1 Slot) Single Slot - Black Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart
- BUILDMART - 12x4 Modern AC Vent Cover - Decorative Black Aluminum Air Vent - Standard Linear Slot Diffuser - Heating and Cooling Register Grille for Ceiling, Walls & Floors - Texas Buildmart
- BUILDMART - 10x4 Modern AC Vent Cover - Decorative Black Aluminum Air Vent - Standard Linear Slot Diffuser - Heating and Cooling Register Grille for Ceiling, Walls & Floors - Texas Buildmart

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-10*