Find All Your HVAC Components in the Exact Size You Need
Easily shop by size for all your essential & premium HVAC components at HVACorner. Whether you need air grilles, vent registers, durable louvers, or sleek linear slot diffusers, our "Shop By Size" feature simplifies your search. No more guessing – select your required dimensions and instantly see all compatible HVAC parts by size, ensuring a perfect fit and optimal airflow for any project.
From standard residential vent covers to large commercial wall louvers or specific register dimensions, we stock an extensive range. If you require a custom size grille or a unique louver dimension not listed, our team can assist. Our goal is to make sourcing airflow components by size straightforward and efficient, saving you time and ensuring project accuracy.
Find your precise HVAC dimensions quickly at HVACorner and get the right parts delivered fast.
| Height / Width | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 22" | 24" | 26" | 28" | 30" | 32" | 34" | 36" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6" | 6x6 | 6x8 | 6x10 | 6x12 | 6x14 | 6x16 | 6x18 | 6x20 | 6x22 | 6x24 | 6x26 | 6x28 | 6x30 | 6x32 | 6x34 | 6x36 |
| 8" | 8x6 | 8x8 | 8x10 | 8x12 | 8x14 | 8x16 | 8x18 | 8x20 | 8x22 | 8x24 | 8x26 | 8x28 | 8x30 | 8x32 | 8x34 | 8x36 |
| 10" | 10x6 | 10x8 | 10x10 | 10x12 | 10x14 | 10x16 | 10x18 | 10x20 | 10x22 | 10x24 | 10x26 | 10x28 | 10x30 | 10x32 | 10x34 | 10x36 |
| 12" | 12x6 | 12x8 | 12x10 | 12x12 | 12x14 | 12x16 | 12x18 | 12x20 | 12x22 | 12x24 | 12x26 | 12x28 | 12x30 | 12x32 | 12x34 | 12x36 |
| 14" | 14x6 | 14x8 | 14x10 | 14x12 | 14x14 | 14x16 | 14x18 | 14x20 | 14x22 | 14x24 | 14x26 | 14x28 | 14x30 | 14x32 | 14x34 | 14x36 |
| 16" | 16x6 | 16x8 | 16x10 | 16x12 | 16x14 | 16x16 | 16x18 | 16x20 | 16x22 | 16x24 | 16x26 | 16x28 | 16x30 | 16x32 | 16x34 | 16x36 |
| 18" | 18x6 | 18x8 | 18x10 | 18x12 | 18x14 | 18x16 | 18x18 | 18x20 | 18x22 | 18x24 | 18x26 | 18x28 | 18x30 | 18x32 | 18x34 | 18x36 |
| 20" | 20x6 | 20x8 | 20x10 | 20x12 | 20x14 | 20x16 | 20x18 | 20x20 | 20x22 | 20x24 | 20x26 | 20x28 | 20x30 | 20x32 | 20x34 | 20x36 |
| 22" | 22x6 | 22x8 | 22x10 | 22x12 | 22x14 | 22x16 | 22x18 | 22x20 | 22x22 | 22x24 | 22x26 | 22x28 | 22x30 | 22x32 | 22x34 | 22x36 |
| 24" | 24x6 | 24x8 | 24x10 | 24x12 | 24x14 | 24x16 | 24x18 | 24x20 | 24x22 | 24x24 | 24x26 | 24x28 | 24x30 | 24x32 | 24x34 | 24x36 |
| 26" | 26x6 | 26x8 | 26x10 | 26x12 | 26x14 | 26x16 | 26x18 | 26x20 | 26x22 | 26x24 | 26x26 | 26x28 | 26x30 | 26x32 | 26x34 | 26x36 |
| 28" | 28x6 | 28x8 | 28x10 | 28x12 | 28x14 | 28x16 | 28x18 | 28x20 | 28x22 | 28x24 | 28x26 | 28x28 | 28x30 | 28x32 | 28x34 | 28x36 |
| 30" | 30x6 | 30x8 | 30x10 | 30x12 | 30x14 | 30x16 | 30x18 | 30x20 | 30x22 | 30x24 | 30x26 | 30x28 | 30x30 | 30x32 | 30x34 | 30x36 |
| 32" | 32x6 | 32x8 | 32x10 | 32x12 | 32x14 | 32x16 | 32x18 | 32x20 | 32x22 | 32x24 | 32x26 | 32x28 | 32x30 | 32x32 | 32x34 | 32x36 |
| 34" | 34x6 | 34x8 | 34x10 | 34x12 | 34x14 | 34x16 | 34x18 | 34x20 | 34x22 | 34x24 | 34x26 | 34x28 | 34x30 | 34x32 | 34x34 | 34x36 |
| 36" | 36x6 | 36x8 | 36x10 | 36x12 | 36x14 | 36x16 | 36x18 | 36x20 | 36x22 | 36x24 | 36x26 | 36x28 | 36x30 | 36x32 | 36x34 | 36x36 |
Read our HVAC
FAQ
What is a return air grille?
A return air grille covers the intake vent where air returns to your HVAC system for reconditioning. It ensures good airflow while keeping your system efficient and free from debris.
Is a 24 x 6 vent standard size?
es, 24 x 6 vents are commonly used in both residential and commercial settings, often for narrow wall or ceiling placements where space is limited.
How do I replace a return air grille?
Remove the screws, slide out the old grille, and install the new one by aligning it with the duct opening. Ensure you select the correct size like 30 x 8 or 32 x 8 for a snug fit.
What does 32 x 8 mean in HVAC grilles?
A 32 x 8 measurement refers to the face size of the grille or vent cover: 32 inches wide by 8 inches high. Always match the grille size to the duct opening for proper fit.
What is a flexible air duct?
A flexible air duct is a bendable ducting solution typically made from foil or plastic over metal wire, used to deliver air in tight or complex spaces where rigid ducts can’t fit.
What is the difference between a supply and return grille?
A supply grille pushes air into the room from the HVAC system, while a return grille draws air back into the system to be filtered and conditioned.
What size air grille do I need?
Match your grille size (e.g., 24 x 6, 32 x 8) to the duct opening, not the overall faceplate size. Undersized grilles restrict airflow and increase energy use.
What is the best material for HVAC grilles?
Aluminum and steel are most common. Aluminum is lightweight and corrosion-resistant, while steel is durable for heavy-duty or high-traffic areas.
Can I paint my HVAC return grille?
Yes, but use a non-toxic, heat-resistant paint, and don’t block louvers. Custom-colored grilles are also available for a cleaner finish.
Are return grilles necessary in every room?
Not always. While return grilles are vital for system balance, homes often use shared central returns. However, more returns can improve airflow and efficiency.