2 Pcs, 4 in. Chicago Plenum Air Tight Octagon Box, 2-1/8 in. Deep, 1/2 & 3/4 Knockouts, .0625 Galvanized Steel - Silver
$32.92
Chicago plenum 2-1/8in deep, 4in octagon boxes with inair tightin (2) 1/2in & (2) 3/4in side knockouts and (3) 1/2in & (2) 3/4in bottom knockouts are used