1 Pc, 4-11/16 Welded Extension Ring, 2-1/8 In. Deep, (8) 1 In. Side Knockouts, .0625 Galvanized Steel Added to Junction Boxes to Increase Wiring Capacity

4-11/16in, 2-1/8in Deep square welded extension rings with (8) 1in conduit knockouts are added to junction boxes to increase wiring capacity and provide access for additional conduit runs. Garvin Industries extension rings prevent having to remove the old conduit boxes and wiring when additional wiring is needed.