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Measure Master Graduated Round Container 64 oz / 2000 ml
$30.38 $25.82
Serious growers know that silica is important to overall plant health. The benefits of using a silica plant nutrient supplement can be experienced by plants in any stage of the life cycle, including the clone or seedling stage. Europonic Silicate has 11%
$195.99 $135.49
The HI1285-9 inline multiparameter probe measures pH, EC/TDS, and temperature in one convenient, rugged probe. Use with the HI981421 GroLine Monitor to provide around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydr
$290.00 $254.99
HI7061-023 is the GroLine general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna's cleaning solutions eli
$16.50 $14.49
HI7004-023 is a high quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof
$16.50 $14.49
