Bluelab 500ML pH 7.0 Calibration Solution - Hydroponic Testing Equipment Patio Horseradish is a perennial plant

Horseradish is a perennial plant of the Brassicaceae

Purple basil has green leaves

Leaves and seeds are poisonous

This sale is for 1 pack of 50 growing bags

Bluelab 500ML pH 7.0 Calibration Solution - Hydroponic Testing Equipment Patio Horseradish is a perennial plantProduct Features Benefits Contains 500 ml Boost your pH products longevity with regular cleaning and calibration. Improve product longevity with regular calibration How to calibrate your Bluelab pH products If you want to improve your Bluelab pH products accuracy and longevity, youll need to get into the habit of regular cleaning and calibration. Luckily, the easy to follow calibration process is the same for all Bluelab pH meters and pens. After