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no fault PDR heater, 4kw at 220v or 1kw at 110v

$542.90

Typically used only on 220v spas where heater is on the 20amp, 220v circuit.

Typically used only on 220v spas where heater is on the 20amp, 220v circuit. These are the replacement heaters for all HotSpring and Tiger River spa years 2002 back to and including 1995. 73790, 6kw heater is for all 110v and 220v spas with a 30 amp breaker for the heater. 73790, 4kw heater can be used in any of the above spas or 220v spas with a 20amp breaker for the heater.