---
product_id: 46052344
title: "18\" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart"
brand: "buildmart"
price: "€ 121.17"
currency: EUR
in_stock: true
reviews_count: 8
category: "Buildmart"
url: https://www.desertcart.it/products/46052344-18-linear-slot-diffuser-2-slot-double-slot-white-decorative
store_origin: IT
region: Italy
---

# Precise 17 3/4” x 3 1/8” neck size 182 CFM airflow capacity Screw-in hidden installation 18" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart

**Brand:** buildmart
**Price:** € 121.17
**Availability:** ✅ In Stock

## Summary

> 🏢 Elevate your space with airflow that’s as stylish as your lifestyle!

## Quick Answers

- **What is this?** 18" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart by buildmart
- **How much does it cost?** € 121.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/46052344-18-linear-slot-diffuser-2-slot-double-slot-white-decorative)

## 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

- • **Effortless Retrofit Fit:** Designed to perfectly replace traditional grills with a precise neck size for seamless installation.
- • **Versatile Airflow Solution:** Supports both supply and return airflows with a powerful 182 CFM capacity for optimal climate control.
- • **Commercial-Grade Durability:** Crafted from 100% solid aluminum for long-lasting strength and effortless maintenance.
- • **Sleek Architectural Upgrade:** Transform any ceiling, wall, or floor with a modern, minimalist vent cover that screams sophistication.
- • **Invisible Installation Magic:** Hidden screw-in mounting keeps your space clean and polished—no unsightly front screws.

## Overview

The BUILDMART 18" Linear Slot Diffuser is a modern, decorative air vent cover made from commercial-grade aluminum. Designed for ceilings, walls, and floors, it offers a sleek architectural look while delivering 182 CFM airflow at 9.8 ft/s velocity. Its precise 17 3/4” x 3 1/8” neck size ensures easy retrofit installation with hidden screw mounting for a clean finish. Ideal for both supply and return vents, this durable, paintable diffuser enhances any residential or commercial space with effortless style and performance.

## Description

BUILDMART - 18" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - desertcart.com

Review: Great quality - Great quality and easy to install, a lot better than the similar that you can find in A/C providers in my area.
Review: easy to install - i use these for my Ortal fireplaces . the fireplace requires a vent, so i buy these take off the inner louver and spray paint them black. they look super modern and expensive . they look like custom linear slot diffusers at a fraction of the price. i have tow ortals and one valor

## 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: 174 ft3/min - effective velocity: 9.8 ft/s; neck: 17 3/4" x 3 1/8" - face: 19 1/8" x 4 5/8" (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 | B06XQ9MLTW |
| Air Flow Capacity | 182 Cubic Feet Per Minute |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #274,524 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,428 in Registers, Grilles & Vents |
| Color | White |
| Customer Reviews | 4.3 4.3 out of 5 stars (87) |
| Date First Available | March 17, 2017 |
| Finish | Finished |
| Head Style | Philips |
| Installation Method | Screw-In |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.72 pounds |
| Item model number | 18-2S-W-LD |
| Manufacturer | Texas Buildmart |
| Material | Aluminum |
| Measurement System | English/Standard |
| Mounting Type | Screw-In |
| Number Of Pieces | 1 |
| Part Number | VLSD |
| Performance Description | 182 CFM @ 9.8 FPS |
| Product Dimensions | 20 x 5 x 2 inches |
| Shape | Rectangle |
| Size | Neck: 17 3/4” x 3 1/8" - Face: 19 1/8" x 4 5/8" |
| Special Features | Easy to Install |
| Style | Modern |
| Wattage | 18 watts |

## Images

![18" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart - Image 1](https://m.media-amazon.com/images/I/51SMYaqznjL.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

### ⭐⭐⭐⭐⭐ Great quality
*by L***R on May 19, 2023*

Great quality and easy to install, a lot better than the similar that you can find in A/C providers in my area.

### ⭐⭐⭐⭐⭐ easy to install
*by A***R on March 8, 2020*

i use these for my Ortal fireplaces . the fireplace requires a vent, so i buy these take off the inner louver and spray paint them black. they look super modern and expensive . they look like custom linear slot diffusers at a fraction of the price. i have tow ortals and one valor

### ⭐⭐⭐⭐⭐ Well made, makes standard ac look linear and very upgraded at a good cost
*by T***C on November 4, 2018*

These are awesome, a step up from your standard ac grilles. We are a contractor and use them for a finish that gives a standard ac box a high level linear vent at a good cost.

## Frequently Bought Together

- BUILDMART - 18" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart
- BUILDMART - 36" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart
- BUILDMART - 24" Linear Slot Diffuser - (2 Slot) Double Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-08*