Pay in 4 interest-free payments of $9.25 Learn more
Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Also contains non-plant food ingredients: humic acids derived from leonardite and peat
first offered by Hydro-Organics in 1996
It provides support for beneficial soil microbes to enhance vigorous roots and plants and is OMRI AND OIM certified
Works with many bulb brands & sizes
Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 water-pumps-&-irrigation-supplies Also contains non-plant food ingredients:Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter that is calibrated to NBS NIST primary standard buffer solutions. The 20 ml sachets are ideal for infrequent calibrations while for heavy duty applications, you can choose from the popular 230 ml, 1 liter, or 1 gallon containers. Now the pH 4 buffers carry lot #, expiry date as well as pH C chart on every bottle. HI 7004L C and HI 8004L C are also supplied