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The SlimSrub insures that the complex microbiology flourishing in the grow media will not be destroyed by harmful chlorine
and a sturdy
Its seamless design requires minimal maintenance and cleaning times
A must for cold water sources
HM Digital Pro Series Pen style pH/TDS/EC/Temp meter b.lite The SlimSrub insures that theCOM 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
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