BUILDMART - 30x4 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: 24 5/8" x 5 15/16" - Face: 26 5/8" x 7 7/8"

28 x 4 28x4 4x28 4 x 28

Neck: 15 3/4" x 9 7/8" - Face: 17 3/4" x 11 13/16"

CFM:  ft3/min - Effective Velocity 9

CFM: 211 ft3/min - Effective Velocity 9

Total Box Dimensions: L: 72 5/16" W: 4 11/16" H: 12"

Ideal for Texas Buildmart 72" Lineal Slot Diffuser - 3 Slot

Neck: 59 1/16" x 4 11/16" - Face: 60 1/2" x 6 1/8"

ASIN: B09GPVG6NJ

51 Engineering Certifications

Neck: 29 1/2" x 23 1/2" - Face: 31 1/2" x 25 1/2"

24 x 20 24x20 20x24 20 x 24