1 Pc, 4 in. Octagon Extension Ring, 3-1/2 in. Deep, 1/2 & 3/4 in. Knockouts, .0625 Galvanized Steel - Silver
$26.09
Material: .0625 Galvanized Steel. Dimensions: 3-1/2 in. Deep. Knockouts: (4) 1/2-3/4 in. Side Knockouts. Size: 4 in.