12x12 White Premium Aluminum Linear Slot Diffuser – Modern Design (Duct Opening)
Regular price $79.79
Shipping calculated at checkout.
- Largest square size in the line — sized for major central returns and open-plan rooms
- Adjustable Deflector Bar — direct airflow left, right, both sides, or fully closed
- Solid alloy aluminum — rust-resistant, zero plastic parts
- Wall or ceiling compatible
- 5-minute drop-in install — no drywall or duct modification
A 12x12 linear slot diffuser for supply air — Green Vent's largest square size, built for major central supply openings.
Will a 12x12 Fit Your Space?
| Feature | Specification |
|---|---|
| Duct Opening Size | 12" × 12" |
| Neck Size | 11-3/4" × 11-3/4" |
| Overall Face Size | 13-3/4" × 13-3/4" |
| Weight | 3.51 lb |
| Material / Finish | Alloy aluminum, white powder-coated (paintable) |
| Compatibility | Supply air, wall/ceiling |
| Included | Diffuser, Deflector Bar, screws, manual guide card |
Installation
- Remove your old cover and confirm the duct opening measures 12" × 12".
- Mount with the included screws through the hidden side holes.
- Use the Deflector Bar to set airflow direction.
Frequently Asked Questions
What size do I order — 12x12 or face size?
Order by duct opening size (12" × 12"). The face size (13-3/4" × 13-3/4") overlaps the opening.
Is this for supply air or return air?
Supply air, with adjustable airflow. For return air in this size, see our 12x12 return air grille.
Is this the largest size available?
It's the largest square size. Rectangular sizes up to 8x14 are also available in the collection.
Can I install this on a ceiling?
Yes — mounts on walls or ceilings.
Is a black finish available?
This size is currently White only. See the full linear slot diffuser collection for Black options in other sizes.
Explore Related Products
- All sizes: Linear Slot Diffuser collection
- Need return air instead: 12x12 Air Return Grille
