28"W X 30"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 31.75"H] Insulated Line Set Design – Easy unrestricted airflow

Design – Easy unrestricted airflow for your HVAC system - 50° angled to provide maximum airflow

+ Product Details Size – 8" x 30" or 30" x 8" is the size for the duct opening measurement only

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

+ Product Spec Sheet Return Air Grille Spec Sheet

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

28"W X 30"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 31.75"H] Insulated Line Set Design – Easy unrestricted airflow+ Product Details Size 28"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" width X 31. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just