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SpaGuard Spa Calcium Hardness Increaser (12 oz) (3 Pack)

  • Based on 866 reviews
Condition: New
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$23.97 Why this price?
New Year Deal · 13% off was $27.57

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Availability: In Stock.
Fulfilled by Pool Geek

Arrives Tuesday, Jan 14
Order within 12 hours and 57 minutes
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Description

SpaGuard's Calcium Hardness Increaser enables spa owners to increase their calcium hardness with this easy to use granular formula, which will boost your calcium hardness to above the danger zone, where low levels cause extensive corrosion of plumbing, jets, fixtures, and tub surfaces. Calcium Hardness Increaser helps raise the calcium level steadily so you don't get too much calcium and start developing scale build-up and cloudy water. The optimal calcium hardness level is 200-400 ppm, while anything below 100 ppm will cause corrosion.

Brand: SpaGuard


Item Weight: 2.5 Pounds


Item Form: Granular


Product Benefits: Prevents Corrosion


UPC:


Brand: SpaGuard


Item Weight: 2.5 Pounds


Item Form: Granular


Product Benefits: Prevents Corrosion


UPC: 017541646123


Unit Count: 36 Ounce


Package Dimensions: 8.27 x 8.07 x 2.76 inches


Item Weight: 2.5 pounds


Manufacturer: SpaGuard


Item model number: 42258BIO


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jan 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Worked perfectly for my needs
Size: Pack of 3
Worked perfectly to get my Spa hardness to the needed level.
Reviewed in the United States on August 5, 2024 by Zenboy4

  • Great
Size: Pack of 3
Great for the spa and priced right
Reviewed in the United States on September 7, 2024 by William B. Heugel

  • Instant results after u follow to detail instructions
Size: Pack of 3
This is the best stuff ever!!!! it fixed my problem, and I tried another brand and it did not work. Best detail of instructions I have seen …This is the bomb.!!!
Reviewed in the United States on July 11, 2024 by lynda seaton

  • The three pack is a great deal
Size: Pack of 3
I use this to maintain the chemicals in my Jacuzzi J385. We have very soft water in the Northwest and I typically need to add 50-75 PPM of calcium hardner per fill which is around 500 gallons. I typically add 25 PPM a time to ensure it is fully dissolved in the water with the jets running. These are the same chemicals that Aquaquip sells and recommended by Jacuzzi. The 3 pack is like buy 2 get the third free! Highs Easy to read chart on the bottle for PPM for size of tub Dissolves in less than 20 minutes Recommend by Jacuzzi ... show more
Reviewed in the United States on October 4, 2023 by Thomas Scherer

  • Lids may be loose
Size: Pack of 3
I received this and one of the lids had come off and contents were spilled into the inner package. I think I'll be able to pour the beads back into and put the lid on correctly, but just letting the manufacturer know they need a better lid installer. Righty tighty, and all that.
Reviewed in the United States on October 16, 2023 by James Fischer

  • Spa Guard is a great company!
Size: Pack of 3
I use ONLY Spa Guard products...they have served me well!
Reviewed in the United States on April 2, 2024 by CLR

  • Spa Guard products
Size: Pack of 3
Raises the water hardness to protect the piping system in hot tubs. Must follow the instructions.
Reviewed in the United States on March 29, 2024 by Michael Brooking

  • arrived as expected on time
Size: Pack of 3
seems to work great adjusting the hardness level in my hot tub
Reviewed in the United States on April 18, 2023 by R. Williams

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