Time to upgrade your old spa pack hot tub heater?
Balboa VS501z, uses simply the best spa pack technology in the market. Completely digital circuitry means less failures, more accurate heating range, and much simpler to use. Accurate to +/- 1 degree with full top side LCD controllers, means, you will never have to leave the spas or tub to change the temperature.
The Balboa Spas 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.