Oreq Clear Spa 104 Calcium Hardness Increaser Made in USA Mechanical timers remain a preferred

Mechanical timers remain a preferred choice for pool equipment because of their durability

Unlike green or yellow algae

air intrusion

Engineered and tested in the USA

Oreq Clear Spa 104 Calcium Hardness Increaser Made in USA Mechanical timers remain a preferredRestore Proper Calcium Hardness to Protect Spa Surfaces and Equipment Oreq Clear Spa 104 Calcium is a professional grade calcium hardness increaser formulated specifically for hot tubs and spas. When calcium levels are too low, spa water becomes aggressive and can cause corrosion of heaters, pumps, seals, and metal components, as well as etching of plaster or acrylic surfaces. This fast dissolving granular formula raises calcium hardness to proper