TrolMaster Heavy Duty pH Inline Sensor HGN30S Click here to compare the

Click here to compare the cost of Z7 to your old enzyme

Replenish CO2 Reminder: calculates time frame based on usage from past 5 days

Epsom Salts is a source of magnesium that is essential to plant development

the glass sensor tip and the reference junction of the pH electrode should be kept moist and not be allowed to dry out when not in use

EPA-registered insect growth regulator containing 3% azadirachtin and provides broad spectrum management of foliar and soil-borne pests

TrolMaster Heavy Duty pH Inline Sensor HGN30S Click here to compare theTrolMaster's new PPH 3 pH probe has been improved in multiple ways. The new PPH 3 features a reduced diameter protective sleeve and threaded body that will allow the probe to be installed into standard 3 4" PVC tee fittings. The PPH 3 has an improved sensor element for more stable and reliable performance. Can be used with the AMP 2 or the AMP 3 nutrient sensor module.