BUILDMART - 16x10 MUD-IN Air Vent Cover - Drywall Mud-in White Air Vent - Mud Linear Slot Diffuser - Register Grille for Ceiling and Walls - Texas BuildmartOur Standard 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: 295 ft3 min Effective Velocity: 9. 8 ft s Neck: 15 3 4" x 9 7 8" Face: 17 3 4" x 11 13 16" This is a Non Filter

36" X 1 3/4" Linear Slot Plenum Box - For Single Slot (1 Slot) Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings

Neck: 24 9/16" x 19 1/2" - Face: 26 9/16" x 21 1/2"

If you do not have this size flex

CFM: 104 ft3/min - Effective Velocity: 9

We make all sizes from 6x4 to 30x24 Standard Sized Modern AC Vent Covers for the Modern Day Home

Total Box Dimensions: L: 72 1/4" W: 6 3/16" H: 12 1/16"

Neck: 21 5/8" x 15 5/8" - Face: 23 5/8" x 17 5/8"

Neck: 21 11/16" x 3 15/16" - Face: 23 11/16" x 5 15/16"

Total Box Dimensions: L: 25 1/16" W: 4 5/8" H: 11 7/8"

CFM 302 ft3/min - Effective Velocity 9

Connects to: 10" flexible duct in oval shape

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