Humus Test Kit Model STH-1
Humus is organic matter which has decomposed to where it can contribute nutrients for plant uptake. Humus Test Kit has a 10 to 15 day lead time and will ship separately from other items ordered. Model Method Range & Sensitivity Reagent System # of Tests STH-1 Color Chart, filtered extraction Low to high in 5 increments, 1 1/2 - 8% EDTA 50 511201 Model STH-1, Humus Test Kit (5#) $91.50
qty: *There is a 20% restocking fee on this product. Model STH-1 Product Manual in .pdf format. (80K) Models STH MSDS Due to the size and/or shape of the Model STH-1, it will ship separately from other items ordered. How to Order | Shipping Guide | Contact Us