Interlocking Circles | Custom Size Vent Cover

Hide unsightly return air vents instantly. No tools, no drilling, no damage. Just clean, modern style that magnetically attaches to your existing metal vent.

Custom-cut to your exact size. Matte white. Removable. Simple.

If your vent uses a standard air filter size, our filter-size vent covers will be a simpler ordering option.

Larger vents ship in 2–4 pieces that align seamlessly

How to Order

Step 1: Test Your Vent
Use a fridge magnet on the vent grate (not the edge). Must hold firmly or this won't work. Must be wall vent.

Step 2: Measure Your Wall Vent
Measure edge-to-edge of current vent (not the grate/opening)

Step 3: Round Down
Round to nearest ½ inch — Example: 16.75" × 20.25" → 16.5 × 20

Step 4: Enter Your Size
Enter your dimensions in the price calculator. Add to cart. (retry if cart appears empty)

⚠ Custom-made = no returns. Measure twice, order once.

What's Included

Custom magnetic vent cover made from flexible magnetic vinyl. Paintable to match any décor.

Important Notes

✓ For: Metal wall return vents only
✗ Not for: Ceiling vents, supply vents, aluminum, or plastic

Decorative magnetic cover — does not replace your HVAC vent or filter

HVAC tested by professionals, consult your technician if unsure, read more about performance and safety here.