16"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 25.875"H] 3-Way or 4-Way Actual Filter Size – 35

Actual Filter Size – 35 3/4"w x 33 3/4" x 1"

+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only

Can be hooked up with our "Butterfly Dampers" for precise airflow control

+ Product Details Size – 14" x 30" or 30" x 14" is the size for the duct opening measurement only

complete with a set of sponge gasket and mounting frame

16"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 25.875"H] 3-Way or 4-Way Actual Filter Size – 35+ Product Details Size 16"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 875" width X 25. 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