Spazazz® RX Respiratory Therapy - Spa Therapy Crystals 19 oz Cover Accessory That's called the Freshwater™ Salt

That's called the Freshwater™ Salt System Plug and you need it

Instructions on how to replace the IQ sensor can be found on pg

Alkalinity

who is the manufacturer of Freeflow® Spas

Spazazz® RX Respiratory Therapy - Spa Therapy Crystals 19 oz Cover Accessory That's called the Freshwater™ SaltSpazazz RX Respiratory Therapy Spa Aromatherapy Crystals Breathe deeply and clear your body with this purifying respiratory blend from Spazazz. Spazazz crystals are formulated for spas, so it is safe to use in all hot tub & spa water balance systems. All Spazazz aromatherapy products can also be safely used in any hydrotherapy environment including whirlpool baths. Size: 19 oz