This heater is a replacement part for the original heater in your Legend Series Master Spas models 1996 through 2001.Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all.
SpaBoss pH Plus easily raises pH levels in spas and hot tubs that are too low below the recommended safe range of 7.2 to 7.6. If levels are too low, your hot tub water can become acidic and other nasty side effects can happen.