10" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 20 5/8"] rg1010 and its seamless drop-in installation

and its seamless drop-in installation process ensures effortless setup

Pre-flared ends with nuts are for simple and easy installation

Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

Slots are angled to diversify the airflow in 2 way direction

Actual Filter Size – 35 3/4"w x 23 3/4" x 1"

10" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 20 5/8"] rg1010 and its seamless drop-in installation+ Product Details Size 10"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 20 5 8" height Actual Filter Size 9 3 4"w x 17 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. Our