HM Digital® COM-300 True Liberty You can be confident that

You can be confident that you are giving your farm or garden the best product available

3lb All in one ready to inoculate grow bag

Replacement Directions: Discard all water to drain for 1 hour prior to use

50% stronger than the most popular brands on the market yet it costs the same

molds and mildews on your indoor or outdoor gardens

HM Digital® COM-300 True Liberty You can be confident thatCOM 300: Waterproof Professional Series pH EC TDS Temp Meter The COM 300 is a professional grade level pH EC TDS Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. FEATURES: Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total