BUILDMART - 48" White Linear Slot Diffuser - 1 Slot - Single 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: 211 ft3 min Effective Velocity 9. 8 ft s Neck: 47 1 4" x 1 5 8" Face: 48 3 4" x 3 1 16" 1 Slot Single Slot 3 4"

ASIN: B06XQ5R5SZ

They have decorative directional dampers

ASIN: B09WTTTD9D

Neck: 17 3/4" x 7 7/8" - Face: 19 3/4" x 9 7/8"

CFM 389 ft3/min - Effective Velocity 9

ASIN: B09K5YD9GF

CFM 174 ft3/min - Effective Velocity 9

CFM: 420 ft3/min - Effective Velocity: 9

CFM: 798 ft3/min - Effective Velocity: 9

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

51 Engineering Certifications

12 x 6 12x6 6x12 6 x 12