24" x 24" T-Bar Drop Ceiling Perforated Return Grill - Metal Back Casing - With 6" Collar Powder Coated For added protection 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
For added protection
Installation Location – Sidewall & ceiling
Actual Filter Size – 19 3/4"w x 9 3/4" x 1"
then you'll need a 14-inch round vent
+ Product Details Size - 22"w X 14"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 Powder Coated For added protection 4 X 12 Is CRFG2028 Width_14in For added protection Installation Location – Sidewall & ceiling