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NLCT- Calcium Increaser


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Item Description


NLCT- Calcium Increaser

Effortlessly increase your spa or hot tub's calcium level when test is reading low.

Prevents multiple issues assosiated with low calcium levels such as heater corrosion.

"Approved for wooden tubs and all Spas and Hot Tubs"


Calcium Increaser will raise the calcium hardness in spa water. Cal-Rise is completely soluble in water and your spa or hot tub can be used immediately after. Cal- Rise is compatible with all sanitizers including bromine, chlorine and biguanide.

Increase calcium level to prevent spa foaming . Low calcium levels (soft water) can lead to the corrosion of metal parts in your spa. Soft water is also responsible for early failure of heater elements. Test water levels regularly to ensure proper water hardness levels.

  • Effective calcium levels should be around 200-300 ppm.

  • Prevents foaming and early heater damage.

  • Reliable, safe and effective. Increases water hardness.

  • Calcium test reading ppm to recommended amount of Cal-Rise conversion chart on back of bottle

Size: 680 g (24 Oz)


Payment Details

We accept PayPal and Credit card (Visa or Mastercard).  If you are ordering multiple units and part, please call us to see if we can save you shipping cost for multiple item orders.

 No taxes to US residence!

Shiping and Handling

Please allow 4-6 days for shipping via UPS Ground to USA or Canada.  You will be emailed a tracking number to the email address you provide us.  Expedited Shipping services are available!

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  • Model: C-86
  • Shipping Weight: 3lbs
  • 19 Units in Stock
  • Manufactured by: Northern Lights