Low calcium hardness levels can be corrosive to hot tub and spas surfaces and equipment. The ideal range for calcium hardness in a hot tub or spa is between 150-250 ppm (parts per million). Use this product to raise your calcium hardness level if it drops below the suggested range.
Availability:Out of stock
SKU
NTC-04205
LOWEST PRICES in the North East
LARGEST SELECTION of Pools, Patio, and Hot Tubs
PRIORITY DELIVERY with special financing available
Flate Rate Shipping available in CT, RI, MA, NY, NH, ME *other exceptions may vary
LOWEST PRICES
in the North East
LARGEST AVAILABILITY
of Pools, Patios and Hot Tubs
PRIORITY DELIVERY
with special financing available
50%OFF
MEGA SALE
MANY ITEM
Lowest Prices in the North East
Largest Availability of Pools, Patio, and Hot Tubs.
Priority Delivery with Special Financing Available