24" X 6" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Fixed Blades It has an outer surface

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

display: inline-flex

Actual Filter Size – 25 3/4"w x 23 3/4" x 1"

+ Product Details Size - 18"w X 4"h is the size for the duct opening measurement only

75"H – fits a 14" X 10" duct opening

24" X 6" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Fixed Blades It has an outer surface+ Product Details Outer dimensions: 25. 75"W x 7. 75"H fits a 24" X 6" 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