8.75" x 8.75" White Plastic Antique Diffuser with Damper 4",5"x6" collar (MVAW), produced by Rectorseal, Airtec brand, for residential or light commercial applications. Rough opening in the ceiling should be 9-1/4" round. OD of square faceplate: 8.75" x 8.75" Included is a built-in Air Damper to restrict airflow when desired. Zip Tie Included. Used for a 4",5" or 6" duct. MPN: 81919 Airtec Antique Small Ceiling Diffuser
Specifications:
- Duct Sizes - 4", 5", 6"
- Max Ceiling Thickness - 1.25"
- Strap Included - Y
- Integral Damper - Y (handle included)
- Required Hole Diameter - 7.25"
- AK Factor - 0.2
- Actual Outside measurements of faceplate are 8.75"x 8.75".
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