BUILDMART - 12x4 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: 180 ft3 min Effective Velocity: 9. 8 ft s Neck: 11 7 8" x 3 7 8" Face: 13 15 16" x 5 15 16" This is a Non Filter

ideal for Texas Buildmart 72" lineal slot diffuser

ASIN: B07W4MFGM3

Connects to: 9" flexible duct in oval shape

CFM: 319 ft3/min - Effective Velocity: 9

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

Neck: 5 7/8" x 5 15/16" - Face: 7 7/8" x 7 3/4"This is a Non-Filter Model

Neck: 23 5/8" x 7 7/8" - Face: 25 5/8" x 9 13/16"

Neck: 29 9/16" x 11 3/4" - Face: 31 1/2" x 13 3/4"

Ideal for Texas Buildmart 18" Lineal Slot Diffuser - 1 Slot

Solid extruded aluminum profile with welding - Electrostatic Paint

CFM: 445 ft3/min - Effective Velocity: 9

CFM 812 ft3/min - Effective Velocity 9