BUILDMART - 18x8 White Modern AC Vent Cover - Decorative Aluminum Air Vent - Standard Linear Slot Diffuser - Heating and Cooling Register Grille for Ceiling, Walls & FloorsThe 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

CFM: 366 ft3/min - Effective Velocity: 9

Total Box Dimensions: L: 36 7/8" W: 4 5/8" H: 11 7/8"

ASIN: B0BRS6P2H7

ASIN: B081QWLB5M

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

CFM: 636 ft3/min - Effective Velocity: 9

ASIN: B09K5YD9GF

Texas Buildmart offers High Quality Linear Slot Diffusers

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

Mouth Dimensions: L: 18" W: 3 3/8"

12 Inch 3 Slot White Triple Linear Diffuser