US$ 17.95
Rust particles — iron oxide particles from aging pipes and plumbing infrastructure
I should have had this sooner
In hydroponics
Mineral Stones: Up to 2 years - included
Package Dimensions 6
HM Digital COM-100 Waterproof EC/TDS & Temperature Combo Meter MC122 Rust particles — iron oxideCOM 100: Waterproof Professional Series EC TDS Meter The COM 100 is a professional grade level 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 electrical conductivity (EC), total dissolved solids (TDS), salinity and
US$ 17.95
US$ 17.95
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