6"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 7.875"W X 7.875"H] Color_Aluminum 85" width X 5

85" width X 5

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Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 4

Operating temperature from -40°f to +248°f [-40°c to +120°c]

+ Product Details Size - 18"w X 20"h is the size for the duct opening measurement only

6"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 7.875"W X 7.875"H] Color_Aluminum 85" width X 5+ Product Details Size 6"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 875" width X 7. 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 just