30"W X 30"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 31.875"H] Compatible With Duct 12in actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 24 5/8" height

+ Product Details Size - 12"w X 10"h Is The Size For The Duct Opening Measurement Only

actual front end outer dimensions are 19" Width X 19" Height

+ Product Description Our Clear Plastic Thermostat Guard is the ultimate solution for protecting your thermostat while ensuring universal compatibility

+ Product Details Size - 24"w X 26"h is the size for the duct opening measurement only

30"W X 30"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 31.875"H] Compatible With Duct 12in actual front end outer dimensions+ Product Details Size 30"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 31. 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