BUILDMART - 18" 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: 246 ft3 min Effective Velocity 9. 8 ft s Neck: 17 13 16" x 4 11 16" Face: 19 1 4" x 6 1 8" 3 Slot Triple Slot 3 4"

CFM: 243 ft3/min - Effective Velocity: 9

ASIN: B07N4GGDZ4

18 x 10 18x10 10x18 10 x 18

16 x 12 16x12 12x16 12 x 16

CFM: 294 ft3/min - Effective Velocity: 9

ASIN: B091SH7NYS

Can be used and brazed to a 4" or 6" wood stud

28 x 6 28x6 6x28 6 x 28

and sanded

18 x 6 18x6 6x18 6 x 18

36 x 16 36x16 16x36 16 x 30

Ideal for Texas Buildmart 36" Lineal Slot Diffuser - 2 Slot