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Salt System Activation Kit (For Salt Ready Tubs)
Ready to simplify your spa maintenance? The Master Spas Salt System Activation Kit gives your compatible hot tub the intelligence it needs to handle water care on its own. No more guessing at chemical levels or wondering if you've added too much or too little—this system monitors and balances your water automatically, delivering that perfect blend of clean and gentle we all crave after a long day on the Big Island.
Everything you need to get started:
- Smart Cell that tests and generates sanitizer automatically
- Advanced controller with manual adjustments
- Mobile app monitoring for water levels
- Simple yearly maintenance (just swap the Smart Cell)
- Compatible with 2025+ Twilight and Legend Series spas
The real magic? Less time maintaining means more time relaxing. You'll use fewer chemicals overall, enjoy softer water on your skin, and spend way less time stressing about balance. Just add quality salt at setup, and the system takes it from there. This is spa care the way it should be—smart, straightforward, and ready for island living.

