BUILDMART - 26x8 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

ASIN: B09WV3BPKM

Entry size: 10" flex in oval shape

Our Linear Slot Diffusers have ASHRAE 70 and ANSI S12

60" X 4 3/4" Linear Slot Plenum Box - For Triple Slot (3 Slot) Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings

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

These have decorative directional dampers

18" X 1 3/4" Linear Slot Plenum Box - For Single Slot (1 Slot) Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings

ASIN: B09J9VPVGZ

and floors

51 Engineering Certifications

you can use a reducer to modify the size

ASIN: B081QPTY28