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their premium mycorrhizal inoculant
organic Norwegian kelp (Ascophyllum nodosum) harvested on the Atlantic coast of Canada
Raw power and lighting intensity is nothing without smart control
Low-battery indicator
Comes with cartridges only
Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 pots-and-containers their premium mycorrhizal inoculantHanna'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
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