1. Clorox
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4 lb, Clorox Pool&Spa 12204CLX Calcium Hardness Increaser, White
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More information #ad
| Brand | Clorox #ad |
| Manufacturer | Clorox® Pool&Spa™ #ad |
| Height | 11.5 Inches |
| Length | 4.4 Inches |
| Weight | 4 Pounds |
| Width | 10 Inches |
| Part Number | 12204CLX |
| Model | 12204CLX |
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2. MAV AquaDoc
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AquaDoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely on, Spa Calcium Increaser & Hot Tub water hardener Spa Chemicals, Calcium Increaser Spa Hardness Increaser & Calcium Booster for Hot Tubs
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Our spa calcium hardness increaser is vital to ensuring proper water hardness levels in your hot tub. Avoid corrosion, etching, and staining - aquadoc's professional Grade Hot Tub Calcium increaser is your best defense against soft water in your hot tub or spa.
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Aquadoc's calcium Booster gets your hardness up. Guard calcium levels from decreasing too low with our spa Calcium booster for hot tubs. Make balancing your water easier & more cost effective with AquaDoc's calcium hardness increaser. Easy to use, add proper amount of increaser while equipment is on. The hardness increaser hot tub owners love - when it comes to Spa Chemicals calcium hardness increaser is a must have. 3 after determining hardness level goal, wait 20 minutes, then retest water. 4 run filter for 1 - 2 hours, made in the usa - 1 check your calcium levels, 2 1 ounce of AquaDoc's Calcium increaser will boost water's hardness level by 10ppm. Without hot tub chemicals calcium hardness can become unbalanced.
| Brand | MAV AquaDoc #ad |
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3. Baqua Spa
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14 oz, BAQUA Spa 88825 Calcium Hardness Increaser Spa and Hot Tub Balancer
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Benefits: raises spa water to the recommended level of calcium hardness. Features: Bromine and chlorine free.| Brand | Baqua Spa #ad |
| Manufacturer | Innovative Water Care #ad |
| Height | 2.44 Inches |
| Length | 2.44 Inches |
| Weight | 1 Pounds |
| Width | 6.2 Inches |
| Part Number | 88825 |
| Model | 88825 |
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4. SpaChoice
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2-Pack, Spa Choice 472-3-3061-02 Increase Calcium Spa Chemical, 1-Quart
#adSpaChoice #ad - Low hardness will etch plaster and corrode spa equipment. The ideal hardness level is 200-400 ppm parts per million. Spa choice increase calcium is used to increase calcium hardness in spas and hot tubs in areas with low levels of hardness.More information #ad
Downloadable user guide Available Under Product Information: Technical Specifications.| Brand | SpaChoice #ad |
| Manufacturer | Spa Choice #ad |
| Height | 10 Inches |
| Length | 6 Inches |
| Weight | 4.5 Pounds |
| Width | 3 Inches |
| Part Number | 472-3-3061-02 |
| Model | 472-3-3061-02 |
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5. Spa Essentials
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12-Ounce, Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs
#adSpa Essentials #ad - Helps prevent corrosion Of Spa Equipment And Surfaces. Increases calcium Hardness Level In Spa Water. Easy to Use. No assembly Required.More information #ad
| Brand | Spa Essentials #ad |
| Manufacturer | Robelle Industries #ad |
| Height | 8 Inches |
| Length | 3 Inches |
| Weight | 0.75 Pounds |
| Width | 3 Inches |
| Part Number | 32534000 |
| Model | 32534000 |
| Warranty | Returns are not accepted on opened or used products and are subject to a 20% restocking fee |
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6. 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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Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. 5, 12. 5 lbs/200ppm. See package for instructions.
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Dosage: 2, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 6. 25 lbs/200ppm. 20, 12. 5 lbs/100ppm, 25 lbs/100ppm, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 000 Gallons: 3 Lbs to increase hardness 50ppm, 6. 25 lbs/100ppm, 3 lbs/100ppm, 000 Gallons: 105 lbs to increase hardness 50ppm, 50 Lbs/200ppm.| Brand | Puri Tech #ad |
| Manufacturer | Puri Tech #ad |
| Height | 6 Inches |
| Length | 12 Inches |
| Width | 6 Inches |
| Part Number | PCC |
| Model | PCC |
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7. SpaGuard
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12 Ounce, SpaGuard Spa Calcium Hardness Increaser
#adSpaGuard #ad - Prevents etching of plaster due to low calcium hardness. Prevents corrosion of equipment due to low calcium hardness. 1 tbs. Per 100 gallons raises calcium hardness 25ppm.More information #ad
| Brand | SpaGuard #ad |
| Manufacturer | SpaGuard #ad |
| Weight | 0.75 Pounds |
| Part Number | 42257BIO |
| Model | BIO42257 |
| Warranty | Returns are not accepted on opened or used items and are subject to a 20% restocking fee. |
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8. 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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5, 000 gallons: 105 lbs to increase hardness 50ppm, 50 Lbs/200ppm. Dosage: 2, 25 lbs/200ppm. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride.
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10, 12. 5 lbs/100ppm, 3 lbs/100ppm, 6. 25 lbs/200ppm. 20, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 25 lbs/100ppm, 6. 25 lbs/100ppm, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 000 gallons: 3 lbs to increase hardness 50ppm, 12. 5 lbs/200ppm.| Brand | Puri Tech #ad |
| Manufacturer | Puri Tech #ad |
| Height | 9 Inches |
| Length | 19 Inches |
| Width | 13 Inches |
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9. 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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20, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 000 Gallons: 6. 25 lbs to increase hardness 50ppm, 50 Lbs/200ppm. 5, 000 gallons: 105 lbs to increase hardness 50ppm, 25 Lbs/200ppm.
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Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. See package for instructions. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. Dosage: 2, 12. 5 lbs/200ppm.| Brand | Puri Tech #ad |
| Manufacturer | Puri Tech #ad |
| Part Number | PCC |
| Model | PCC |
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10. 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
#adBrand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. See package for instructions. Dosage: 2, 000 gallons: 1.
More information #ad
5 lbs to increase hardness 50ppm, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 000 gallons: 105 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 25 lbs/100ppm, 3 lbs/100ppm, 000 gallons: 3 Lbs to increase hardness 50ppm, 25 Lbs/200ppm.20, 12. 5 lbs/200ppm. 10, 6. 25 lbs/100ppm, 6. 25 lbs/200ppm.| Brand | Puri Tech #ad |
| Manufacturer | Puri Tech #ad |
| Part Number | PCC |
| Model | PCC |
More information #ad