4x10 Black Premium Aluminum Linear Slot Diffuser (Pack of 2) – Modern Design (Duct Opening)
Regular price $64.79
Shipping calculated at checkout.
- Pack of 2 — matched pair for two rooms or one room needing double coverage
- 2-slot design — a common hallway and bedroom size
- Matte black finish — blends into dark floors, trim, and modern interiors
- Adjustable Deflector Bar on each unit — direct airflow independently per vent
- Solid alloy aluminum — rust-resistant, zero plastic parts
Two 4x10 linear slot diffusers for supply air in matte black — a matched pair that saves on shipping when you need more than one.
Will a 4x10 Fit Your Space?
| Feature | Specification |
|---|---|
| Duct Opening Size | 4" × 10" (×2) |
| Neck Size | 3-3/4" × 9-3/4" |
| Overall Face Size | 5-3/4" × 11-3/4" |
| Weight | 2.58 lb (pair) |
| Material / Finish | Alloy aluminum, matte black powder-coated |
| Compatibility | Supply air, wall/ceiling/floor |
| Included | 2× Diffuser, 2× Deflector Bar, screws, manual guide card |
Installation
- Remove your old covers and confirm each duct opening measures 4" × 10".
- Mount each unit with the included screws through the hidden side holes.
- Use each Deflector Bar to set airflow direction independently.
Frequently Asked Questions
What size do I order — 4x10 or face size?
Order by duct opening size (4" × 10"). The face size (5-3/4" × 11-3/4") overlaps the opening.
Do both units need to go in the same room?
No — the pack works for two separate rooms or one room with two vents.
Will the black finish fade or chip?
No — it's a matte black powder coat baked onto solid aluminum, not paint over plastic.
Is a single unit available instead?
Yes — see the 4x10 Black Linear Slot Diffuser (single).
Is a white finish available?
Yes — see the 4x10 White Linear Slot Diffuser (Pack of 2).
Explore Related Products
- Single unit: 4x10 Black Linear Slot Diffuser
- White 2-pack: 4x10 White Linear Slot Diffuser (Pack of 2)
- All sizes: Linear Slot Diffuser collection
