In The Swim Spa Calcium Hardness Increaser - Granular Formula to Prevent Corrosion - 2 Pound F086002024AZ
In The Swim Spa Calcium Hardness Increaser - Granular Formula to Prevent Corrosion - 2 Pound F086002024AZ
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In The Swim Spa Calcium Hardness Increaser - Granular Formula to Prevent Corrosion - 2 Pound F086002024AZ

4.7 stars out of 66 reviews
(4.7)|
66 ratings

Key item features

  • Boost Water Quality: Prevent cloudy, dull water by restoring the right calcium levels in your pool
  • Protect Your Pool: Helps stop costly damage like corrosion and pitting on pool surfaces and equipment
  • Easy-to-Use Granules: Fast-dissolving formula works quickly—just measure, pour, and circulate
  • Dial in the Perfect Balance: Raise hardness 50 ppm per 6 lbs per 10,000 gallons—easy, accurate, and powerful
  • Multi-Use Chemical: Highly effective for swimming pools—and also serves as an
Current price is $21.49$10.75/lb
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4.7 out of 5 stars
stars66 ratings48 reviews
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Showing 1-3 of 48 reviews

Sep 27, 2025
Mark
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Size: 45 lbs
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

Arrives quickly. actually a fifty pound bucket instead of the fifty pound bucket size that only has thirty five pounds in it. easy to use.

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Sep 16, 2025
rebecca
Walmart Associate
Item details
Size: 45 lbs
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

Great product

I glad that Walmart had this available to order it came in 2 days!! Perfect for my inground pool needs.

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Aug 27, 2025
anonymous
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Size: 25 lbs
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

Better Option

For the price conscience individual.Good products at very competitive prices and on time delivery what more can you ask for

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Helpful?5S353RU8I0UB44697437