Bluelab - pH Probe KCl Storage Solution net cup They have been fulfilling the

They have been fulfilling the needs of professionals and hobbyists for over 20 years with efficient

CO2 supplementation and elevated nutrient levels

dual-purpose use

Easy to apply throughout the entire grow cycle and through to harvest

and intensive crop production

Bluelab - pH Probe KCl Storage Solution net cup They have been fulfilling theThe perfect solution to store and hydrate your Bluelab pH probes or pens. Bluelab pH Probe KCl Storage Solution is made specifically for use with BluelabpH Probes and Pens. It is designed to increase response time and maximize the life of Bluelab pH Probes and Pens. Add KCl solution to the cap of the pH pen probe for storage, after use and hydrate in KCl solution monthly. Instructions are on the label of the bottle. Bluelab pH Probe KCl Storage