Hanna Instruments 1500 mg/L (ppm) TDS Calibration Solution, 20 mL - Case of 25 Container Size:230 mL A patent-pending controller embedded in

A patent-pending controller embedded in each fixture enables control of up to 500 fixtures per EL control channel and helps maintain unwavering output from light to light

5 M KCl/AgCl (gel)

Seabird Guano greatly enhances beneficial bacterial activity in the soil and because it

Notice: Over time the logs will start to get covered in green mold that is actually trichoderma if left inside the plastic

This concept keeps the grower from having to purchase multiple products that virtually do the same thing

Hanna Instruments 1500 mg/L (ppm) TDS Calibration Solution, 20 mL - Case of 25 Container Size:230 mL A patent-pending controller embedded inHanna Instruments 1500 mg L (ppm) TDS Calibration Solution is a premium quality 1,500 mg L (ppm) TDS calibration solution that is NIST traceable and contained in portable single use sachets. Each Hanna Instruments 1500 mg L (ppm) TDS Calibration Solution has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of TDS calibration solutions have been specially