Please see Reference Guide to ensure the proper solution for your tester.

• pH Buffers come in 12 powder pack. Each pack makes 100 ml of solution. One 100 ml bottle is included for mixing.
• pH Electrode Storage Solution comes in 60 cc container.
• TDS Calibration Solution comes in 90 ml bottle.
• Cleaning Solution for pH Testers comes in 500 ml container.

California Residents: Warning: Cancer and Reproductive Toxicity - P65Warnings.ca.gov