Bluelab 2.77EC Conductivity Solution 500 ml (6/Cs)
In Store Only, Call 224-399-9877 for Availability
The 2.77EC solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solution should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.""