SpaChoice 14-Ounces 6-Pack Premium Increase Calcium, Calcium Hardness Increaser Hot Tub, Made in USA
Product information
$45.52
Product price and availability are accurate as of February 2, 2026 at 3:22pm and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Additional details
Features
The ideal hardness level is 200-400 ppm 1 ounce of product per 500 gallons increases hardness by about 10 ppm This product is used to increase the calcium hardness in spas and hot tubs
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