Time to upgrade your old spa pack hot tub heater?
Balboa VS501z, simply uses the best spa pack technology on the market. Completely digital circuitry means less failures, more accurate heating range, and much simpler to use.
This Balboa Spa Pack works at either 120 VAC producing 1.5KW, or with a change of a jumper operates at 230 VAC producing 5.5 KW of heat. It fits any standard 2" or 1 1/2" plumbing making it ideal to upgrade almost any older mechanical spa pack.