34" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 36 5/8"] Insulated Line Set + Product Description Introducing our

+ Product Description Introducing our 18" Wooden Corner Baseboard Grille - a sophisticated addition to elevate your HVAC system and interior decor

+ Product Details Size – 22"w X 8"h is the size for the duct opening measurement only

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

Perforated steel grille for return air flow

This thoughtful design ensures optimal air circulation for your HVAC system

34" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 36 5/8"] Insulated Line Set + Product Description Introducing our+ Product Details Size 34"w X 34"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 36 5 8" width X 36 5 8" height Actual Filter Size 33 3 4"w x 33 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.