18" X 12" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face w14h14 + Product Details Size -

+ Product Details Size - 30"w X 36"h is the size for the duct opening measurement only

+ Product Details Size – 24"w X 6"h is the size for the duct opening measurement only

+ Product Details Size - 18"w X 10"h is the size for the duct opening measurement only

Our coils have a very high PSI burst pressure

actual front end outer dimensions are 17" Width X 17" Height

18" X 12" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face w14h14 + Product Details Size -+ Product Details Size 18"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" width X 13. 75" height. High Quality High grade steel construction with easy unrestricted air flow for your HVAC system. Installation Location Sidewall & ceiling. Design Multi shutter damper with handle lever for easy opening and closing screws included. Powder Coat Finish Smooth, shiny, scratch resistant,