10" X 10" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Height_26in Actual Filter Size – 21

Actual Filter Size – 21 3/4"w x 27 3/4" x 1"

+ Product Details Size – 12" x 20" is the size for the duct opening measurement only

this guard ensures long-lasting protection while offering a sleek

Performance – High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

+ Product Details Heavy-Duty Steel Construction - Made from 20-gauge steel for superior strength and durability

10" X 10" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Height_26in Actual Filter Size – 21+ Product Details Outer dimensions: 11. 75"W x 11. 75"H fits a 10" X 10" duct opening Durable stamped steel construction ensures long lasting performance Designed for sidewall and ceiling installation with included screws Multi shutter damper with easy lever for precise airflow control Smooth powder coated white finish for a sleek look and scratch resistance + Product Description Maximize your homes airflow with this premium Air Supply Grille air