Circulation Heaters Screw Plug or Flanged Heater Design2 – 14” Galvanized Carbon Steel Pipe Body, 150Lb Construction3 – 500 kW120, 240 and 480V, 1 & 3 PhaseGeneral Purpose, Moisture Resistant/Explosion Resistant, Explosion Resistant or Moisture Resistant Terminal Enclosure0.475” Dia. Copper Sheath Elements (45 – 50 W/In2)With & Without ThermostatUL, CSA and Other Third Party Approval, Listing or Certification Available on Many Models VISIT STORE