Raco Inc 697, Steel, 3-Gang, 19-KO, Non-Gangable, Welded, Masonry Box, 1 pc. RACO 3404, Liquidtight Conduit Connector, 1″, Uninsulated, 10 PC. Raco Inc 955, Steel, 6-Gang, 30-Knockout, Electrical Gang Box, 1pc.