10" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 22 5/8"] w16h16 + Product Description Maximize the

+ Product Description Maximize the efficiency of your ventilation system with our top-of-the-line HVAC grilles and registers

+ Product Details Size - 26"w X 34"h is the size for the duct opening measurement only

2" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

+ Product Details Size - 25"w X 12"h is the size for the duct opening measurement only

+ Product Details Size - 24"w X 2"h is the size for the duct opening measurement only

10" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 22 5/8"] w16h16 + Product Description Maximize the+ Product Details Size 10"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 22 5 8" height 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. Our filter grille latch is easy to use on