12" X 8" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White with filter while the included installation screws

while the included installation screws make setup quick and hassle-free

+ Product Details Size - 34"w X 24"h is the size for the duct opening measurement only

Design – Circular air supply valves - designed to be used in low and medium pressure ventilation air conditioning systems

Actual Filter Size – 33 3/4"w x 19 3/4" x 1"

Mounted with frame and bayonet joint which are included

12" X 8" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White with filter while the included installation screws+ Product Details Outer dimensions: 13. 75"W x 9. 75"H fits a 12" X 8" 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 supply