40"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 41.875"W X 21.875"H] Compatible with Duct 6" Actual Filter Size – 17

Actual Filter Size – 17 3/4"w x 7 3/4" x 1"

actual front end outer dimensions are approximately 20 5/8" width X 34 5/8" height

actual front end outer dimensions are approximately 30 5/8" width X 16 5/8" height -

+ Product Details Size – 34"w X 8"h is the size for the duct opening measurement only

40"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 41.875"W X 21.875"H] Compatible with Duct 6" Actual Filter Size – 17+ Product Details Size 40"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 41. 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