Give your space the Aesthetic update it deservers , Seamless Looking, Sleek and Stylish, Easy to Clean, Modern 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. Our vent covers can be used as return air vent covers. How do I choose a Linear Slot Diffuser? 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 STEP 4: Drill Screws Fourth, Using a 6 Extension on your drill you can use the 2 screws provided & secure your New Vent 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. So if you measure a 12 x 6 hole then order a 12x6 Vent *This is a design and utility patent pending product* We make all sizes from 6x4 to 30x24 standard sized modern ac vent covers for the modern day home 100% Aluminum, Seemless, Rust-Proof & Long Lasting STEP 2: Measure Hole Second, Measure the Vent Hole and order. Are Linear Slot Diffusers good? Linear Slot Diffusers are the “face” of the vent, often referred to as a Vent Cover. Bathroom Fan Cover Air Vent Deflector Modern AC Vent Cover 14x4 - White Linear Slot Diffuser For Ceiling, Wall & Floor - Texas Buildmart Air Conditioner Vent Covers Texas White Aluminum Vent Grille Linear Slot Diffusers Installed What sizes do vent covers come in? What is the standard vent cover size? Vent Covers, Grilles, Registers, Diffusers come in different sizes. This model can be used as a supply vent cover and return vent cover - This is a non-filter model STEP 3: Open Blades Third, You will open the blades with something flat to find the PreDrilled holes on the sides 1 Remove Vent Cover 2 Measure Your Vent 3 Open Blades 4 Drill Screws SABA Hoe Decor, Air Vent Cover Grille - Acrylic Plexiglass 18 x 18... Adds value to any wall, ceiling & floor space by updating not only the look but also the feel Keep in mind that our models are non-filtered models.