Bluelab Original Truncheon Nutrient Meter Rhizoflora it has been determined that

it has been determined that the 40 GPH pump can be used as a replacement for the 32-site

Keep your plants productive and green with Cal-Mag

Applied to the leaves and stems

we know what it takes to prevent clogging

Bluelab Original Truncheon Nutrient Meter Rhizoflora it has been determined thatWith its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LEDs and no on off buttons to worry about, the Bluelab Truncheon Nutrient Meter has proven itself as the world's favorite nutrient meter. It is powered by three standard AA batteries. EC (023. 6), CF (236) and ppm scales (TDS and 700 scale). Fully waterproof design. No calibration required. Auto sense on and off. No external switches or