24"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 25.875"W X 17.875"H] Extruded Aluminum Ceiling Two Mounting Base Options –

Two Mounting Base Options – Includes both a solid base and a ring base

75" width X 31

Actual Filter Size – 33 3/4"w x 19 3/4" x 1"

reducing energy costs and maximizing HVAC system lifespan

75" Width X 27

24"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 25.875"W X 17.875"H] Extruded Aluminum Ceiling Two Mounting Base Options –+ Product Details Size 24"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 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