25" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 27 5/8" X 18 5/8"] w18h18 + Product Details Size –

+ Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 36 5/8" height

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

+ Product Details Size - 34"w X 10"h is the size for the duct opening measurement only

provides a modern look and quiet operation due to its half-inch by half-inch cube design

25" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 27 5/8" X 18 5/8"] w18h18 + Product Details Size –+ Product Details Size 25"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27 5 8" width X 18 5 8" height Actual Filter Size 24 3 4"w x 15 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.