Leslie's - Hardness Plus for Calcium Hardness
How to get it
Store Pickup
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Keep your calcium hardness at proper levels at all times to help protect your pool, water, and pool equipment.
- Calcium hardness increaser
- Keeps your pool and equipment free from damage
- Increases Calcium Hardness by 10 ppm per 1-1/4 lbs. in 10,000 gallons of water.
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$28.99
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$86.99
Select Styles for Availability