Conduit Body Series Material: Malleable Iron Types: LC, LB, LL, LR, LT, TB ... 4, 1-1/2, 2, 3, 4 High Quality Malleable Iron Threaded Electric Conduit Body With Covers And Gaskets Electric ... Series, Electrical Conduit Bodies TB type. Material: Malleable Iron Sizes: From 1/2"-4" 1/2"NPT ... set screw-for emt 1. Rugged,seamless, die-cast construction that prevents moisture entry2. Reinforced connector outlets ...