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
This versatile tool features ergonomically sculpted handles and fully hardened, precision-ground, steel blades that cut all the way to the tip and stay sharp through heavy use. Other features Include a power notch to cut light rope, wire and twine cutters
$21.99 $18.68
EZ-Clone specially formulated gel is designed to speed up root development, produce vigorous healthy roots & protect the cutting from pathogens & contaminants. This unique formula was designed specifically for the EZ-Clone cloning systems, but can also be
$12.25 $11.03
Gro Pro Essential Round Fabric Pots with Handles - Black
$3.70 $3.15
Athena Grow is a simple and clean formula designed for the vegetative stage of growth and for non-flowering plants. Our careful balanced mineral ratios help facilitate optimal plant development including photosynthesis, healthy respiration, and robust sta
$200.00 $115.99
Athena Grow is a simple and clean formula designed for the vegetative stage of growth and for non-flowering plants. Our careful balanced mineral ratios help facilitate optimal plant development including photosynthesis, healthy respiration, and robust sta
$45.00 $38.24
Athena Cuts Rooting Gel is a premium rooting gel formulated to propagate new plants from stem and leaf cuttings of mother plants. It is formulated with an essential plant hormone that promotes rapid root generation and growth.
This water-based gel coats
$44.99 $36.99
Athena Pro Core provides strong baseline nutrition across all stages of plant growth. Nitrogen to assemble chlorophyll and amino acids. Calcium to build structure. Essential microelements to catalyze photosynthesis, enzyme production and a multitude of im
$200.00 $115.99