Zinc Colorimetric Test Strips Elm Dirt and coconut oil

and coconut oil

Driver - Designed by Medic Grow and manufactured by Sosen

Non-Toxic: Safe for use on edible plants

With NSF/ANSI 42

Zinc Colorimetric Test Strips Elm Dirt and coconut oilZinc Test Strips: 0 to 50 mg L Convenient, on site water testing Use for quick spot checks to ensure water quality. These new water test strips are perfect for field testing, process control, and analytical and research applications. Strips are easy to use: simply dip the strip into water sample to be tested, remove strip, and compare resulting color change to enclosed color chart. Tests take approximately 1 to 10 minutes. Strips are packaged 100 pk.