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Check the function of your RO membrane and DI resin.
$37.99
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Designed to offer a simple controller to eplace evaporated water.
$99.99
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Measures total dissolved solids, conductivity, and temperature.
$89.99
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Measures total dissolved solids, conductivity, and temperature.
$99.99
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Displays TDS levels of feed water and product water.
$44.99
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Digital pH display with accuracy of +/- .01.
$87.99
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Continuously monitor pH values directly in your aquarium.
$89.99
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Gives you quick accurate readings instantly.
$27.99
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Compatible with virtually every monitor or controller on the market.
$59.99
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The controller of choice for ozone or CO2 applications.
$196.99
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The precise way to measure freshwater purity.
$119.99
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Monitor pH levels iand automate dosing of CO2.
$129.99
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Digital ORP display with accuracy to +/-1 mV.
$97.99
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Digital readout of dissolved oxygen in range of 0.0-20.0 ppm.
$219.99
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Visually and audibly assists you in maintaining your aquarium.
$23.69
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Monitor ORP levels and automate dosing of ozone.
$129.99
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Monitor pH and ORP and automate dosing of CO2 and ozone.
$219.99
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The controller of choice for either ozone or CO2 applications.
$196.99
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Extremely accurate digital instrument.
$249.99
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Measures temperature utilizing a radio wave signal.
$39.99
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