30-day postage paid returns
        Free shipping special for you
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          • SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA
          1 / 17

          SpaChoice 1-Quart Premium Liquid Calcium Hardness Increaser Hot Tub | Rapidly Increases Calcium Hardness, Concentrated Calcium Chloride, 1 oz per 500 gallons raises hardness 10 ppm, Made in USA

          $5.31 USD
          Shipping fees will be calculated at checkout.
          Size

          • Free worldwide shipping

          • Free returns

          • Carbon neutral

          • Secure payments

          • The ideal hardness level is 200-400 ppm
          • 1 ounce of product per 500 gallons increases hardness by about 10 ppm
          • Customers prefer this liquid product as it can be easier to use than granular alternatives
          UPC034261188542
          Upc034261188542
          Item FormLiquid
          Unit Count32 Fluid Ounces
          Item Weight2 pounds
          ManufacturerRobelle Industries
          Model Number472-3-3061
          Item Type NameIncreaser Hot Tub
          Number of Items1
          Product BenefitCalcium Increaser
          Product BenefitsCalcium Increaser
          Package Size Name1-Quart
          Manufacturer Part Number472-3-3061
          Example title

          You may also like

          Recently viewed

          Service

          Fast and free delivery
          Lifetime customer support
          30 day refund guarantee

          Return policy | Privacy Policy | Shipping Policy | Terms of Service |
          © 2026 Twipik. All Rights Reserved.

          Cart

          loading