PH/EC/TDS Meters and Solutions

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GH pH Control Kit (12/Cs)

$22.75

General Hydroponics
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GH pH Test Indicator 8 oz

$14.53

General Hydroponics
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GH pH Up Liquid Gallon (4/Cs)

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Now: $10.59 - $39.06

General Hydroponics
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GH pH Down Liquid Gallon (4/Cs)

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Now: $10.59 - $39.06

General Hydroponics