Sirona™ Calcium Booster 1 lb. - Granular Calcium Hardness Increaser for Hot Tubs Caldera cold plunge filter also known as shock

also known as shock

The Tropic Seas Spas Tonga 35 Sq Ft

It comes with everything you need to install onto your Tropic Seas hot tub and cover

The Paradise Spa Vac is the replacement for the Watkins Spa Vac that was discontinued by the manufacturer

Sirona™ Calcium Booster 1 lb. - Granular Calcium Hardness Increaser for Hot Tubs Caldera cold plunge filter also known as shockSirona Calcium Booster will effectively raise the level of calcium in spa water. The granular formulation will gradually increase water hardness which will help prevent the corrosion of equipment and foaming caused by soft water. To figure out the dose of calcium hardness increaser for your hot tub gallons, just follow the chart that is on the back of the bottle. Size: 1 lb. Sirona Calcium Booster is compatible with almost all hot tub sanitization