40"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 41.875"W X 17.875"H] Curved Blade Steel Insulation – A thick blanket

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

+ Product Details Size – 20"w X 50"h is the size for the duct opening measurement only

+ Product Description

actual front end outer dimensions are approximately 14 5/8" width X 34 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 34" OR 34" x 30" duct opening (measured at the opening)

40"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 41.875"W X 17.875"H] Curved Blade Steel Insulation – A thick blanket+ Product Details Size 40"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 41. 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