BUILDMART - 22x4 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

ASIN: B06XQ5R5SZ

Connects to: 8" flexible duct in oval shape

CFM: 492 ft3/min - Effective Velocity: 9

ASIN: B081QWLB5M

CFM: 224 ft3/min - Effective Velocity 9

Neck: 17 3/4" x 7 7/8" - Face: 19 3/4" x 9 7/8"

Neck: 21 9/16" x 7 13/16" - Face: 23 11/16" x 9 13/16"

14 x 14 14x14 14x14 14 x 14

Neck: 13 5/8" x 13 3/8" - Face: 15 3/4" x 15 5/8"

ASIN: B09WTJXNH2

Total Box Dimensions: L: 48 3/4" W: 4 3/4" H: 11 7/8"

10 x 8 10x8 8x10 8 x 10