Luster Leaf 1663 80-Test Rapitest Soil Tester Kit pH N P K
A Soil testing kit for field or classroom use allows low cost testing for soil pH, as well as Nitrogen, phosphorus and Potash content. Packed in a sturdy plastic carrying case. Includes complete instructions and recommendations to amend soils based on test results. Contains liquid reagents and equipment for 80 total tests. 20 each for pH, N, P, K.