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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Works with many bulb brands & sizes
first offered by Hydro-Organics in 1996
Also contains non-plant food ingredients: humic acids derived from leonardite and peat
Choose based on your facility's voltage supply and the airflow/pollution level — F-tubes are generally suited for higher-demand applications
Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 water-pumps-&-irrigation-supplies Works with many bulb brandsHanna'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