BUILDMART - 12x4 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

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

ASIN: B09GPWMPWY

Neck: 29 9/16" x 5 3/4" - Face: 31 11/16" x 7 15/16"

12x10 10x12 12 x 10

ASIN: B097KFJKMJ

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

36 x 16 36x16 16x36 16 x 30

Neck: 27 5/8" x 3 15/16" - Face: 29 1/2" x 5 15/16"

ASIN: B09WTVSJSJ

12 x 6 12x6 6x12 6 x 12

Neck: 24 1/2" x 23 3/8" - Face: 26 9/16" x 25 3/8"

Mouth Dimensions: L: 35 3/4" W: 4 3/4"