BUILDMART - 8x6 Black Modern AC Vent Cover - Decorative Aluminum Air Vent - Standard Linear Slot Diffuser - Heating and Cooling Register Grille for Ceiling, Walls & Floors - Texas BuildmartThe Performance of This Buildmart Diffuser Was Verified Through Testing According to ASHRAE 70 and ANSI S12. 51 ISO 3741 Standard by AIRFLOW SCIENCES CORPORATION Submittals Available Upon Email Request 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

Neck: 29 1/2" x 3 15/16" - Face: 31 1/2" x 5 15/16"

CFM: 665 ft3/min - Effective Velocity: 9

CFM: ft3/min - Effective Velocity 9

16 x 8 16x8 8x16 8 x 16

CFM: 908 ft3/min - Effective Velocity: 9

Neck: 35 1/2" x 5 15/16" - Face: 37 3/8" x 7 7/8"

They have decorative directional dampers

ASIN: B09WTH3KK4

ASIN: B085WCP81V

Neck: 17 3/4" x 1 5/8" - Face: 19 1/8" x 3 1/16"

6 x 4 6x4 4x6 4 x 6

CFM 812 ft3/min - Effective Velocity 9