18" X 12" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face Compatible with Duct 10" Actual Front End Outer Dimensions

Actual Front End Outer Dimensions Are 18" Width X 5" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size – 28"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

actual front end outer dimensions are approximately 20 5/8" width X 34 5/8" height

+ Product Details Size – 22"w X 20"h is the size for the duct opening measurement only

18" X 12" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face Compatible with Duct 10" Actual Front End Outer Dimensions+ 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,