BUILDMART - 72" Black Linear Slot Diffuser - 3 Slot - Triple Slot - Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & Floors - Texas BuildmartOur Linear Slot Diffusers have ANSI S12. 51 and ASHRAE 70 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, Walls, and Floors This Model can be used as a Supply Vent Cover and Return Vent Cover CFM: 812 ft3 min Effective Velocity 9. 8 ft s Neck: 70 13 16" x 4 3 4" Face: 72 5 16" x 6 1 8" 3 Slot Triple Slot 3 4"

Mouth Dimensions: L: 11 7/8" W: 4 3/4"

Total Box Dimensions: L: 19 1/16" W: 3" H: 11 15/16"

Neck: 23 9/16" x 11 3/4" - Face: 25 9/16" x 13 3/4"

CFM: 259 ft3/min - Effective Velocity: 9

22 x 6 22x6 6x22 6 x 22

CFM 269 ft3/min - Effective Velocity 9

CFM: 312 ft3/min - Effective Velocity: 9

you can use a reducer to modify the size

51 Engineering Certifications

14 x 12 14x12 12x14 12 x 14

Neck: 21 5/8" x 5 15/16" - Face: 23 5/8" x 7 7/8"

Neck: 17 3/4" x 3 15/16" - Face: 19 11/16" x 5 15/16"