Pay in 4 interest-free payments of $28.75 Learn more
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
For even more drastic results
This smell proof kit comes with a hemp tray
Only available in black
providing a balanced N-P-K ratio of 5-0-1
HM Digital® COM-300 clone For even more drastic resultsCOM 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
