10" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 30 5/8"] Material_Aluminum + Product Details Size -

+ Product Details Size - 26"w X 16"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height -

+ Product Details Size - 25"w X 34"h is the size for the duct opening measurement only

+ Product Details Size - 12"w X 20"h is the size for the duct opening measurement only

Design – Unrestricted airflow for your HVAC system - adjustable one-way louver with full horizontal airflow directional control - single deflection supply grill with 96% airflow - noise free components - no vibrating louvers etc

10" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 30 5/8"] Material_Aluminum + Product Details Size -+ Product Details Size 10"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 30 5 8" height Actual Filter Size 9 3 4"w x 27 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location ceiling and sidewall Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter