UPGRADE your EXISTING CL Free "Classic" to the "Classic-plus"
Having trouble reading the pH test kit?
Tired of having to physically measure and test your pH weekly?
UPGRADE your exiting "Classic" system to the "Classic-plus"
An Electronic pH sensor constantly reads the pH of your pool water and displays the pH in easy to read Digital numbers right on the front of your computer
Call us at 800-517-0773 for more information