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pH Standard. 7.0 Buffer. 230 ml (MA9007) TDS Standard: 1382ppm / 230 ml (MA9062) Colorimetric pH Test Kit
Colorimetric pH Test Kit
Our Price: $12.95
Meter-PHTestKit - Colorimetric pH Test Kit Pocket Microscope 30X with light HM Digital TDS-80 Economy Meter for EC, TDS and Temperature
HM Digital PH & Temperature Meter-Economy Milwaukee TDS Waterproof Meter HM Digital Professional Waterproof Meter for EC, TDS and Temperature
Milwaukee #MW-100 Digital and Waterproof pH Meter HM Digital / #pH-200 / Professional pH HM Digital pH Meter