24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 14" Collar return grille please note that the total

please note that the total outer dimensions of the grille measure 8" in diameter

The process is intuitive: simply select the appropriate ceiling square for your grill

+ Product Details Size - 16"w X 36"h is the size for the duct opening measurement only

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

+ Product Details Size - 14"w X 32"h is the size for the duct opening measurement only

24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 14" Collar return grille please note that the total+ Product Details Size 24" x 24" with 14" collar T Bar drop ceiling perforated return grill metal back casing High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Easy drop ceiling installation. Design Heavier gauge than needed, built for durability and long life in mind, but still