pH & ORP Controllers & Monitors
Stay on top of the overall health of your system with reliable, accurate, easy-to-use pH and ORP (oxidation-reduction potential) monitors. Peace of mind is just a click away.
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$55.00
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$99.00
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$215.49
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$89.95
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$189.00
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$219.00$199.99
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$499.00
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$21.50
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$134.00
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$114.99
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$50.00
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$90.00
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$66.49
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$189.99
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$141.00$119.85
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$145.00
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$159.99
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$209.00
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$154.99
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$190.50