Check the listing for details. SpaGuard Balancer Bundle (Includes: pH Decreaser, pH Increaser, Alkalinity In.... Condition: New. Listed at 39.96 USD. Includes: SpaGuard pH Increaser 18 oz.: SpaGuard's pH Increaser does simply just that; raises your water's pH level. Protects corrosion of equipment due to low pH levels and balances water for bather comfort. SpaGuard pH Decreaser 22 oz.: SpaGuard's pH Decreaser does simply just that; lowers your water's pH level. Protects spa and equipment due to improper pH levels, prevents cloudy water due to high pH, and balances water for bather comfort. SpaGuard Total Alkalinity Increaser 2 lbs.: SpaGuard's Total Alkalinity Increaser does simply just that; raises the total alkalinity level in your spa. Eliminates "pH bounce", and helps prevent equipment and spa surface corrosion and damage. SpaGuard Calcium Hardness Increaser 12 oz.: This easy-to-use formula helps to raise calcium hardness levels and prevent corrosion and staining on spa surfaces. Simply follow the instructions on the package and enjoy clear, balanced spa water.