Explosion-proof: Class 1, Groups B, C & D. Class II, Groups E, F, G., Aluminum, Iron, Stainless Steel or Epoxy Coated Aluminum Casing. 3/4" NPT Conduit, 1/2" NPT Process, Bakelite Termination, 1/2" NPT Extension (Many More Options Available)
General-purpose: Non-Hazardous, Cast Aluminum, 3/4" NPT Conduit, 1/2" Process, Ceramix Composition, 1/2" NPT Extension (Many Options Available for Different Applications)