Zinc Colorimetric Test Strips Elm Dirt Non-Toxic: Safe for use on

Non-Toxic: Safe for use on edible plants

Deep Breath

Compact Size: Perfect for both small home vineyards and container gardening

With NSF/ANSI 42

weather permitting

Zinc Colorimetric Test Strips Elm Dirt Non-Toxic: Safe for use onZinc 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.