Top 10 Pool&Spa Calcium Hardness Increaser – Swimming Pool Balancers

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1. Clorox

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4 lb, White, Clorox Pool&Spa 12204CLX Calcium Hardness Increaser

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Clorox #ad - Ideal for plaster pools and soft water areas. For best results, use with the Clorox Pool app. Prevents corrosion, etching, and staining. Power source Type: Manual. Increases low Total Hardness levels in swimming pool water. Prevents pool surface damage.
BrandClorox #ad
ManufacturerClorox® Pool&Spa™ #ad
Height11.5 Inches
Length4.4 Inches
Weight4 Pounds
Width10 Inches
Part Number12204CLX
Model12204CLX

2. Puri Tech

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Puri Tech Pool Chemicals 25 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - Dosage: 2, 25 lbs/100ppm, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 000 gallons: 3 lbs to increase hardness 50ppm, 000 gallons: 1.

5 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 6. 25 lbs/100ppm, 3 lbs/100ppm, 12. 5 lbs/200ppm. 20, 6. 25 lbs/200ppm. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. 5, 50 lbs/200ppm. See package for instructions. 10, 000 gallons: 105 lbs to increase hardness 50ppm, 25 Lbs/200ppm.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Part NumberPCC
ModelPCC

3. Puri Tech

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Puri Tech Pool Chemicals Calcium Hardness Increaser Plus for Pools & Spas Increases Calcium Hardness Levels 5lb

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Puri Tech #ad - Dosage: 2, 6. 25 lbs/200ppm. 5, 3 lbs/100ppm, 25 lbs/200ppm. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride.

10, 25 lbs/100ppm, 000 Gallons: 6. 25 lbs to increase hardness 50ppm, 000 Gallons: 105 lbs to increase hardness 50ppm, 50 Lbs/200ppm. 20, 000 gallons: 3 lbs to increase hardness 50ppm, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 6. 25 lbs/100ppm, 12. 5 lbs/200ppm. Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. See package for instructions.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Height6 Inches
Length12 Inches
Width6 Inches
Part NumberPCC
ModelPCC

4. Puri Tech

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Puri Tech Pool Chemicals 10 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - 10, 3 lbs/100ppm, 50 Lbs/200ppm. See package for instructions. Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling.

Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. 20, 12. 5 lbs/100ppm, 000 gallons: 105 lbs to increase hardness 50ppm, 25 lbs/100ppm, 6. 25 lbs/200ppm. 5, 000 gallons: 3 lbs to increase hardness 50ppm, 000 Gallons: 6. 25 lbs to increase hardness 50ppm, 000 Gallons: 1. 5 lbs to increase hardness 50ppm, 12. 5 lbs/200ppm. Dosage: 2, 6. 25 lbs/100ppm, 25 lbs/200ppm.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Part NumberPCC
ModelPCC

5. Puri Tech

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Puri Tech Pool Chemicals 50 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - 10, 6. 25 lbs/100ppm, 3 lbs/100ppm, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 000 gallons: 105 lbs to increase hardness 50ppm, 000 Gallons: 1.

5 lbs to increase hardness 50ppm, 000 Gallons: 3 Lbs to increase hardness 50ppm, 25 Lbs/200ppm. 5, 50 lbs/200ppm. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. Dosage: 2, 25 lbs/100ppm, 12. 5 lbs/200ppm. Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. See package for instructions. 20, 6. 25 lbs/200ppm.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Height9 Inches
Length19 Inches
Width13 Inches

6. Puri Tech

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Puri Tech Pool Chemicals 20 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - 5, 25 lbs/100ppm, 12. 5 lbs/200ppm. Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling.

Dosage: 2, 25 lbs/200ppm. 10, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 6. 25 lbs/100ppm, 000 gallons: 3 lbs to increase hardness 50ppm, 000 Gallons: 6. 25 lbs to increase hardness 50ppm, 000 Gallons: 105 lbs to increase hardness 50ppm, 50 Lbs/200ppm. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. 20, 3 lbs/100ppm, 6. 25 lbs/200ppm. See package for instructions.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Part NumberPCC
ModelPCC

7. Puri Tech

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Puri Tech Pool Chemicals 15 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - See package for instructions. Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling.

Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. Dosage: 2, 6. 25 lbs/200ppm. 5, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 12. 5 lbs/200ppm. 10, 25 lbs/100ppm, 6. 25 lbs/100ppm, 000 gallons: 105 lbs to increase hardness 50ppm, 000 gallons: 3 Lbs to increase hardness 50ppm, 3 Lbs/100ppm, 25 Lbs/200ppm.20, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 50 Lbs/200ppm.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Part NumberPCC
ModelPCC

8. Puri Tech

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Puri Tech Chemicals 25 lb Calcium Hardness Increaser & 25 lb Alkalinity Increaser Kit for Swimming Pools & Spas Balance Chemical Levels Keep Surfaces & Water Clean

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Puri Tech #ad - Kit includes 1 bag of alkalinity Increaser & 1 Bag of Calcium Hardness Increaser. Low alkalinity level can cause pH levels to fluctuate. Total alkalinity balance is a crucial component of water balance. Raises total alkalinity in swimming pool water. High alkalinity levels can cause the water to cloud or scale. Brand new packaging: puri Tech Chemicals now come in a resealable bag! Raises calcium level in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. Active ingredients: Calcium Chloride & Sodium Hydrogen Carbonate.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Height9 Inches
Length19 Inches
Width13 Inches

9. Baqua Spa

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BAQUA Spa 88825 Calcium Hardness Increaser Spa and Hot Tub Balancer, 14 oz

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Baqua Spa #ad - Includes: one 14-oz container of BAQUA Spa Calcium Hardness Increaser. Benefits: raises spa water to the recommended level of calcium hardness. Use: part of baqua spa's bromine-free and chlorine-free maintenance product line. Compatibility: Works with all biguanide sanitizer systems. Features: Bromine and chlorine free.
BrandBaqua Spa #ad
ManufacturerInnovative Water Care #ad
Height2.44 Inches
Length2.44 Inches
Weight1 Pounds
Width6.2 Inches
Part Number88825
Model88825

10. Caribbean Spa

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Caribbean Spa Calcium Hardness Increaser to Raise The Calcium Level in Hot Tub Water Presented by Pool Stuff Express

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Caribbean Spa #ad - Made in the U. S. A. Eliminate Foaming, No Cloudiness. Prolong life of spas and hot tubs. No corrosion to equipment.
BrandCaribbean Spa #ad
ManufacturerHaviland #ad
Part Number83-976
Model83-976