BUILDMART - 72" White Linear Slot Diffuser - 2 Slot - Double Slot - Decorative Aluminum Air Vent - Heating and Cooling Modern AC Vent Cover for Ceiling, Walls & FloorsOur 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: ft3 min Effective Velocity 9. 8 ft s Neck: 70 7 8" x 3 1 8" Face: 72 1 4" x 4 5 8" 2 Slot Double Slot 3 4" Slot

CFM:  ft3/min - Effective Velocity 9

If our Modern AC Vent Cover is used as a Return air vent cover

ASIN: B0BRS6P2H7

ASIN: B07N4GGDZ4

CFM: 291 ft3/min - Effective Velocity: 9

Neck: 19 5/8" x 9 13/16" - Face: 21 5/8" x 11 3/4"

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

Ideal for Texas Buildmart 48" Lineal Slot Diffuser - 3 Slot

CFM: 269 ft3/min - Effective Velocity 9

CFM: 416 ft3/min - Effective Velocity: 9

CFM: 520 ft3/min - Effective Velocity: 9

16 x 6 16x6 6x16 6 x 16