12" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 14 5/8"] RG66 Black-HP accordion-title:hover { background-color: #f0f0f0

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+ Product Details Size – 6"w X 14"h is the size for the duct opening measurement only

our grill boasts an impressive 96% airflow capacity

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Design – Unrestricted airflow For Your HVAC system - noise free components - no vibrating louvers etc

12" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 14 5/8"] RG66 Black-HP accordion-title:hover { background-color: #f0f0f0+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 14 5 8" height Actual Filter Size 11 3 4"w x 11 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter