24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 6" Collar sidewall actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 18 5/8" height

+ Product Details Size - 18"w X 6"h is the size for the duct opening measurement only

Performance – High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

Actual Filter Size – 35 3/4"w x 33 3/4" x 1"

24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 6" Collar sidewall actual front end outer dimensions+ 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