Hanna 1500PPM Calibration Solution Grodan matched to a cabinet interior

matched to a cabinet interior rather than a jar

At 2" x 2" the pack lies flat under an eighth or quarter jar lid without eating volume

It stays quiet at 31 dBA while drawing only 11 W

Encourages growth and hardiness in your plants

Hanna 1500PPM Calibration Solution Grodan matched to a cabinet interiorTDS solution are produced with high quality potassium chloride in various concentrations. They are standardized using a conductivity meter calibrated with NIST potassium chloride. The 1413 ? S cm solution is the one best suited for general use. This solution is also available in combination kits with the pH 7 buffer for the easy calibration of multiparameter instruments.