HM Digital DM-1A 3/8" Inline Dual TDS Monitor
Brand New - HM Digital DM-1A (with two 3/8'' Tee fittings) Inline Dual TDS Monitor, DM1 DM-1
Measure the tap water coming in vs. the purified water going out of your system at any time. Use the monitor to determine when the filters need to be changed. Install the meter for your customers so they'll always know how their system is performing.
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