HM Digital DM-2 Inline TDS Meter 3/8 QC

The 210484 HM Digital DM-2 Commercial In-Line Dual TDS Meter 3/8 QC is a water quality tester that accurately measures the total dissolved solids

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HM Digital DM-2 Commercial In-Line Dual TDS Monitor, 0-9990 ppm

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DM-2 HM Digital Commercial In-Line Dual TDS Monitor - 3/8 Tee Fittings