BUILDMART - 22x8 Black Modern AC Vent Cover - Decorative Aluminum Air Vent - Standard Linear Slot Diffuser - Heating and Cooling Register Grille for Ceiling, Walls & Floors - Texas BuildmartThe Performance of This Buildmart Diffuser Was Verified Through Testing According to ASHRAE 70 and ANSI S12. 51 ISO 3741 Standard by AIRFLOW SCIENCES CORPORATION Submittals Available Upon Email Request Designed and Engineered to the Highest HVAC Industry Standards Commercial Grade Solid Aluminum with Modern Architectural Design This Model can be used in Ceilings, Walls, and Floors This Model can be used as a Supply Vent Cover and Return Vent Cover

Texas Buildmart offers Mud In Air Vent Covers also known as Drywall Mud-in White Air Vents

14 x 4 14x4 4x14 4 x 14

CFM 657 ft3/min - Effective Velocity 9

30 x 4 30x4 4x30 4 x 30

ASIN: B09JBJLRKY

CFM: 269 ft3/min - Effective Velocity 9

Ideal for Texas Buildmart 12" Lineal Slot Diffuser - 2 Slot

Neck: 19 3/4" x 3 15/16" - Face: 21 5/8" x 5 15/16"

Ideal for Texas Buildmart 36" Lineal Slot Diffuser - 1 Slot

Ideal for Texas Buildmart 12" Lineal Slot Diffuser - 1 Slot

you can use a reducer to modify the size

ASIN: B09GHTPLJT