BUILDMART - 36x10 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

Total Box Dimensions: L: 19 3/16" W: 6 1/8" H: 12"

This white air vent register can be used as a supply air vent cover for ceilings and walls and as a return air vent cover register but looks like a Luxury Drywall Mud-in Vent Cover

48" Linear Slot Diffuser - 3 Slot - Triple Slot Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings

48" X 3 1/2" Linear Slot Plenum Box - For Double Slot (2 Slot) Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings

24 x 4 4x24 24x4 24 x 4

ASIN: B09GJLCK88

Mouth Dimensions: L: 23 7/8" W: 4 3/4"

30 x 24 30x24 24x30 24 x 30

36 x 18 36x18 18x36 18 x 36

Entry size: 2 entries of 8" flex in oval shape

CFM: 259 ft3/min - Effective Velocity: 9

This air-distribution box attaches directly to the supply of the HVAC equipment that heats or cools the air