3KW stright LX Spa tub heater with pressure switch H30-R1, Lx spa pool heater, massage bathtub heater replace for chinese old spa heater. 3KW straight chinese hot tub heter parameter: The heater come with 1.5m power cable,1.5m pressure switch cable, 1.5" tailpieces and unions Please note this Chinese heater has a second cable coming from it that goes to the pressure switch built inside it. Please note this Chinese heater has a second cable coming from it that goes to the pressure switch built inside it. The heater 1.5" outlet , min 0.035MPA pressure. we suggest at least 0.25HP / 170W pump, then can insure it work correctly. Package including: 1 x H30-R1 heater Package weight: 1.8KG Package size: 30x20x15cm