24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 8" Collar 18" Round Duct Pipe making it ideal for preventing

making it ideal for preventing tampering or unauthorized adjustments

Location – sidewall and ceiling

+ Product Details Size – 34"w X 24"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26

24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 8" Collar 18" Round Duct Pipe making it ideal for preventing+ Product Details Size 24" x 24" with 8" 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