Hercules heater assembly 26-0002-7S has a 5.5kW element.

Hurricane Spas 5.5kw , 230v heater.

This heater is 2 1/4 inches x 15 inches in length.

Flo-Thru heater assembly, 2.25”x 15”, 304SS,
with PSI tap, thermo wells, and studs.
Includes 2”x2” tail pieces, 2” ridged gaskets.

Replaces:
(5.5kW) C2550-0002/ET, C2550-0002EET,20-00224,
20-00424, 48-3300-16