10" X 6" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 12 5/8" X 8 5/8"] Fixed Blades with Damper + Product Details Size -

+ Product Details Size - 24"w X 4"h is the size for the duct opening measurement only

The 1/2" black insulation

Foot Operated Opposed Blade Damper For Full Air Flow Control And Shutoff

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height

10" X 6" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 12 5/8" X 8 5/8"] Fixed Blades with Damper + Product Details Size -+ Product Details Size 10"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 8 5 8" height. High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and