36" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 38 5/8"] R-6.0 insulation + Product Details Size –

+ Product Details Size – Duct end cap is 24" X 12" | 26-gauge galvanized steel end cap

+ Product Details Size - 34"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 48"W X 8"H is (for duct opening measurement only)

Strongest Magnets – Our anisotropic magnetic vent covers provide the strongest magnetization and seal to your register grilles

How to Measure Your Vent Hole Before Ordering a Grille

36" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 38 5/8"] R-6.0 insulation + Product Details Size –+ Product Details Size 36"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 38 5 8" width X 38 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 Fixewd hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and