BUILDMART - 48" MUD-IN Linear Slot Diffuser - 3 Slot - Air Vent Cover - Drywall Mud In White Air Vent - Mud Linear Slot Diffuser - Register Grille for Ceiling and Walls - Texas BuildmartOur Linear Slot Diffusers have ASHRAE 70 and ANSI S12. 51 Engineering Certifications Designed and Engineered to the Highest HVAC Industry Standards Commercial Grade Solid Aluminum with Modern Architectural Design This Model can be used in Ceilings and Walls This Model can be used as a Supply Vent Cover and Return Vent Cover CFM: 542 ft3 min Effective Velocity 9. 8 ft s Neck: 47 5 16" x 4 3 4" Face: 48 11 16" x 6 1 8" 3 Slot Triple Slot 3 4" Slot Width

You can use this as a floor vent cover

ASIN: B08MZGBTRV

CFM: 302 ft3/min - Effective Velocity: 9

18 x 4 18x4 4x18 4 x 18

Neck: 9 5/8" x 9 1/2" - Face: 11 13/16" x 11 11/16"

ASIN: B091QDDZFP

Total Box Dimensions: L: 13 3/16" W: 2 7/8" H: 11 7/8"

12" Linear Slot Diffuser - 2 Slot - Double Slot Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings

ASIN: B09WTK19CV

24 x 20 24x20 20x24 20 x 24

Neck: 25 9/16" x 5 7/8" - Face: 27 1/2" x 7 7/8"

CFM: 255 ft3/min - Effective Velocity: 9