Hanna 1500PPM Calibration Solution Grodan purified water and a food-grade

purified water and a food-grade thickener

Encourages growth and hardiness in your plants

matched to a cabinet interior rather than a jar

The superior drainage ensures efficient nutrient uptake and prevents waterlogging

this humidifier ensures a tranquil environment for both the plants and the grower

Hanna 1500PPM Calibration Solution Grodan purified water and a food-gradeTDS 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.