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Alden Leeds Hardness Increaser

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Calcium is a valuable part of balanced water to prevent corrosion of any metal parts and protect pool surfaces. Nuclo Basic Calcium Hardness is 100% Calcium Chloride Dihydrate. It is extremely fast dissolving, pH neutral and is applied directly to the pool or pre-dissolved in water to raise the hardness (calcium) level in your pool to the ideal range. Stops staining and etching of pool surfaces caused by low hardness levels. Great for use in areas where soft water is a problem.

  • Increases Calcium Hardness in soft water
  • Prevents corrosion and etching
  • 100% Soluble
  • 100% Calcium Chloride
  • 1 lb. per 10,000 gallons per 15 PPM

You have a pool, so you know you need to keep it clean and safe for your family. Why not use the best pool chemicals available. Our pool chemicals are some of the highest rated pool chemicals around. Keep your pool clean, clear, and refreshing all summer with our pool chemical's extensive line of swimming pool products.

Item No Description Freight List Price Price Save  
A91846 Hardness Increaser - 4Lb. Bag FREE $29.93 $19.95 $9.98
A91850 Hardness Increaser - 10Lb. Pail FREE $40.43 $26.95 $13.48




Home Swimming Pool Supplies Swimming Pool Chemical Hardness increaser


small $3.99 to $7.99 handling fee per order

Order Amount Handling Fee
$0.01 - $24.99 $8.99
$25.01 - $100.00 $9.99
Over $100.00 $10.99
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Hardness Increaser - Alden Leeds Pool Chemical