16"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 21.875"H] Compatible With Duct 12in Actual Filter Size – 13

Actual Filter Size – 13 3/4"w x 21 3/4" x 1"

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height

+ How To Measure A Grille Before You Buy Overall Size:

+ Product Details Size – 6" x 14" or 14" x 6" is the size for the duct opening measurement only

Works for every air conditioning & refrigeration application including ductless mini-split

16"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 21.875"H] Compatible With Duct 12in Actual Filter Size – 13+ Product Details Size 16"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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