30"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 21.875"H] w14h14 + Product Details Size -

+ Product Details Size - 20"w X 6"h X 2"d (for duct opening measurement only)

Commercial Grade Aluminum - Will Never Rust - Designed for Warehouses

+ Product Details Size – 30"w X 28"h is the size for the duct opening measurement only

The process is intuitive: simply select the appropriate ceiling square for your grill

+ Product Details Size - 30"w X 25"h is the size for the duct opening measurement only

30"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 21.875"H] w14h14 + Product Details Size -+ Product Details Size 30"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 21. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was