24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 6" Collar Color_Black See chart below:

See chart below:

actual front end outer dimensions are approximately 14 5/8" width X 22 5/8" height

+ Product Details Size – 16"w X 14"h is the size for the duct opening measurement only

+ Product Details Size - 25"w X 4"h is the size for the duct opening measurement only

24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 6" Collar Color_Black See chart below:+ Product Details Size 24" x 24" with 6" 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