O-Z Gedney UNF-150A, 1-1/2″, Aluminum, Female, Explosionproof Conduit Union, 1pc. O-Z Gedney SLG-150S, 1-1/2″ Rigid Conduit Sealing Lock Nut, 1 pc. Junction Box; Material Cast Iron. We have new products in manufacturer boxes, as well as loose and shelf-worn quality products to save you even more money.