B&B Electronics is a fiberglass and PVC junction box manufacturer.  The fiberglass junction boxes are available in either 7 x 4 x 3 or 9 x 4 x 3 inch sizes, have optional back panels, are NEMA Type 1, 2, 3, 3R, 4, 4X, 12, 13, are UL 508 listed and are CSA certified LR 89590.  The PVC junction boxes come in 4 x 4 x 2 to 12 x 12 x 6 inch sizes, have no pack panel options, are NEMA Type 1, 2, 3, 3R, 4, 4X, 12, 13, are UL listed 514C and are CSA C-22.2 No. 85.