14" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w14h14 our Circular Air Supply Valves Compatible with Duct 4" RG1612AL actual front end outer

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

actual front end outer dimensions are approximately 3

featuring a sleek ½” fin design

+ Product Details Size - 30"w X 8"h is the size for the duct opening measurement only

Solid Rigid Steel Body For Durability and Reliability

14" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w14h14 our Circular Air Supply Valves Compatible with Duct 4" RG1612AL actual front end outer our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems actual front end outer dimensions are approximately 3