Our heavy Duty Rigid Box Support assists contractors in reinforcing electrical boxes, plaster rings and low-voltage devices. Installers will benefit from increased strength and support for both 4" and 411/16" boxes, single or two gang p-rings. The tool-free first means of support garners maximum efficiency when working with flexible or rigid conduit. These are similar to the nVent Caddy Erico brand RBS24, only better and less expensive. We also have many other box supports and brackets like the CJ6, TSGB24, stand offs, acoustic ceiling hangers! Buy more and save on all you commercial and residential needs, check out our other listings!