Hatco

Booster Water Heater Replacement Elements
Therm-Coil  Drawing
Number
Model Number Watts Volts Hatco Model Number Immersion Length
  HB-230U 2250 / 3000 208 / 240 02-04-303 9"
  HB-235U 2625 / 3500 208 / 240 02-04-351 10"
  HB-240U 3000 / 4000 208 / 240 02-04-302
02-04-401
11 3/4"
  HB-245U 3400 / 4500 208 / 240 02-04-451 11 3/4"
  HB-245H 3400 / 4500 208 / 240 02-04-350 7 3/4"
  HB-250H 3750 / 5000 208 / 240 02-04-400
02-04-501
9 3/4"
  HB-260H 4500 / 6000 208 / 240 02-04-450
02-04-603
02-04-653
11 3/4"
  HB-350H 5000 208 02-04-500 9 3/4"
  HB-360H 6000 208 02-04-600
02-04-600A
02-04-650
11 3/4"
  HB-530U 3000 480 02-04-305 9"
  HB-535U 3500 480 02-04-352 10"
  HB-540U 4000 480 02-04-404 11 3/4"
  HB-545U 4500 480 02-04-453 11 3/4"
  HB-550H 5000 480 02-04-502 9 3/4"
  HB-560H 6000 480 02-04-605
02-04-655
11 3/4"
U=Medium watt density (100 W/in²)
H=High watt density (150-180 W/in²)