GroLine General Purpose Cleaning Solution (230 mL) lab DO probe Preferred by professional growers and

Preferred by professional growers and aquarists who demand 24/7 visibility into pH and nutrient levels

NSF42 Certified Contaminant Removal

and inorganic contaminants for up to 150 gallons of clean

and ideal for challenging samples like beer

The gel-filled reference system requires minimal maintenance

GroLine General Purpose Cleaning Solution (230 mL) lab DO probe Preferred by professional growers andHI7061 023 is the GroLine general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna's cleaning solutions eliminate impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna suggests cleaning the bulb and junction of your