... with UL,CE,ISO Certifications 2.Electric water heater element for Water Parts Customized Stainless Steel or Copper Tubular Electric Water Heater: Voltage&Power:110V ... ). Tubular,flange heater,stainless steel,inconel sheath With UL approval Electric Water Heater:Tubular heaters are available in Copper, SS304, SS 310, SS316 ...