Top 9 SpaGuard Calcium Hardness Increaser – Kitchen & Dining Features

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1. SpaGuard


SpaGuard Spa Calcium Hardness Increaser, 12 Ounce

SpaGuard #ad - Prevents corrosion of equipment due to low calcium hardness. 1 tbs. Prevents etching of plaster due to low calcium hardness. Per 100 gallons raises calcium hardness 25ppm.
BrandSpaGuard #ad
ManufacturerSpaGuard #ad
Weight0.75 Pounds
Part Number42257BIO
WarrantyReturns are not accepted on opened or used items and are subject to a 20% restocking fee.

2. SpaGuard


SpaGuard Spa Calcium Hardness Increaser 12 oz 12

SpaGuard #ad - Per 100 gallons increases calcium hardness ~25 ppm. Prevents corrosion of equipment. Prevents degradation of spa surfaces. 1 tbsp.
BrandSpaGuard #ad
ManufacturerSpaGuard #ad
Weight10 Pounds
Part Number42258BIOx12

3. MAV AquaDoc


Calcium Increaser Spa Hardness Increaser & Calcium Booster for Hot Tubs, AquaDoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely on, Spa Calcium Increaser & Hot Tub water hardener Spa Chemicals

MAV AquaDoc #ad - Our spa hardness increaser easily works to raise your Calcium levels by 10ppm increments or more. Our spa calcium hardness increaser is vital to ensuring proper water hardness levels in your hot tub. The hardness increaser hot tub owners love - when it comes to Spa Chemicals calcium hardness increaser is a must have.

How it works - aquadoc's hot tub calcium hardness increaser works to raise your water's hardness level to ensure properly balanced hot tub water. Easy to use, add proper amount of increaser while equipment is on. Guard calcium levels from decreasing too low with our spa Calcium booster for hot tubs. 4 run filter for 1 - 2 hours, wait 20 minutes, 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.

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. Always have a hot tub calcium booster ready and waiting. Aquadoc's calcium Booster gets your hardness up. Make balancing your water easier & more cost effective with AquaDoc's calcium hardness increaser. 3 after determining hardness level goal, then retest water. Without hot tub chemicals calcium hardness can become unbalanced.
BrandMAV AquaDoc #ad



Leisure Time CB Calcium Booster Balancer for Spas and Hot Tubs, 32 fl oz

LEISURE TIME #ad - Benefits: raises water hardness to maintain a level of hardness between 150-400 ppm. Use: one ounce increases hardness 7 ppm in 500 gallons of water. Prevents corrosion. Compatibility: Compatible with chlorine, bromine, ozone, and biguanide sanitizers. One ounce increases hardness 7 ppm in 500 gallons of water. Includes: one 32-oz bottle of Leisure Time Calcium Booster. Features: prevents corrosion and foam; Part of Leisure Time's Simple Spa Care program. Compatible with chlorine, bromine, ozone and biguanide sanitizers.
ManufacturerLeisure Time #ad
Height9.5 Inches
Length3.12 Inches
Weight2.58 Pounds
Width3.12 Inches
Part NumberCB

5. Baqua Spa


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

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

6. Puri Tech


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

Puri Tech #ad - Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. 5, 3 lbs/100ppm, 000 gallons: 3 lbs to increase hardness 50ppm, 25 lbs/200ppm.

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

7. Quality Producer Direct


Calcium Hardness Increaser 1 Gallon Calcium Chloride Powder for Pools & Hot Tubs

Quality Producer Direct #ad - Used to prevent Corrosion in Pools & Hot Tubs. Manufactured in the USA. Great value: 1 gallon of Calcium Chloride Powder. Lab-tested & Certified. Calcium chloride anhydrous Powder Increases Total Hardness of Pool Water.
BrandQuality Producer Direct #ad
ManufacturerQuality Producer Direct #ad
Height7.5 Inches
Length7.47 Inches
Width7.47 Inches

8. SpaGuard


2 Lb, SpaGuard Spa Total Alkalinity

SpaGuard #ad - 1 tbs. Per 100 gallons raises total alkalinity 25ppm. Eliminates "pH bounce". Helps prevent equipment and spa surface corrosion and damage.
BrandSpaGuard #ad
ManufacturerSpaGuard #ad
Height3 Inches
Length9 Inches
Weight2 Pounds
Width3 Inches
Part Number42275BIO
WarrantyReturns are not accepted on opened or used products and are subject to a 20% restocking fee

9. Spa Essentials


Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs, 12-Ounce

Spa Essentials #ad - No assembly Required. Helps prevent corrosion Of Spa Equipment And Surfaces. Easy to Use. Increases calcium Hardness Level In Spa Water.
BrandSpa Essentials #ad
ManufacturerRobelle Industries #ad
Height8 Inches
Length3 Inches
Weight0.75 Pounds
Width3 Inches
Part Number32534000
WarrantyReturns are not accepted on opened or used products and are subject to a 20% restocking fee