16"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 17.875"H] w14h14 These are airflow control components

These are airflow control components made to connect to supply grilles of the drop ceiling

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

Actual Filter Size – 15 3/4"w x 24 3/4" x 1"

75" Width X 31

actual front end outer dimensions are approximately 12 5/8" width X 28 5/8" height

16"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 17.875"H] w14h14 These are airflow control components+ Product Details Size 16"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 875" width X 17. 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