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Blue Wave Spa Calcium Hardness Increaser for Hot Tubs | NP113 | 1 Lb. Jar

Ships to in business days.

  • Low calcium can cause corrosion of your spa's plumbing and heating, and stain your spa's surface. When the calcium level of your spa water drops below 200 ppm, just add Calcium Hardness Increaser as needed.

  • We offer free shipping on this item via FedEx Ground. Once you place your order, we will process, pack and ship within 2 business days. Once it is shipped, you will receive tracking information which you can use to view the progress of your shipment on the FedEx Website. You should expect it to arrive on your doorstep 4-7 business days after placing your order.

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