Model:DY-60/90/120/180/210 Water Outlet Capacity:60/80/100/180/210L/h Power: 6/9/12/15/18/21KW Input Voltage:60L/H :220V/380V , Other 380V ,without Plug , connect with air pressure switch Outlet Mouth QTY:2pcs Inner Tank Material:SUS304 Food Grade Stainlees Steel Outer Tank Material: 201 Tainless Steel Water Tap: innner copper, outer SUS304 food grade stainless steel Heating Tube:copper Insulating Layer:Peripheral and bottom with urethane foam,thickness 2cm, save 40% electric energy Automatic Function: Anti-dry Function ,Add water,Temperature Indication, Water Level Indication Water Pressure:100-400kpa Inlet Size:1/2 inch