Hercules offers blank boxes where you can chose where to cut your own custom hole size.  Ceiling box is made of galvanized sheet metal 4" depth and comes with a connecting metal collar for attachment the ductwork.


SKU Description Prod Info Price/Units Quantity
772BOX 7"X7"X2"DEEP BOX WITH 1"FLANGE Product_Details EA
774BOX 7"X7"X4"DEEP BOX WITH 1"FLANGE Product_Details EA
992BOX 9"X9"X2"DEEP BOX WITH 1"FLANGE Product_Details EA
994BOX 9"X9"X4"DEEP BOX WITH 1"FLANGE Product_Details EA