PH, EC, TDS Meters and Solutions

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GroStar pH calibration kit (pH 4/7, 8 oz. each)

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Now: $18.99
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GroStar pH calibration kit (pH 4/7/10, 8 oz. each)

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Now: $28.99
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GroStar pH Probe Maintanence Kit

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Growee Hydromaster

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Now: $500.00
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Growee Nutrient doser

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Now: $350.00
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Growee ph Balancer

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Now: $350.00
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Growee pH Combo Doser

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Was: $700.00

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Growee Pro Combo Doser

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Growee Starter Combo Doser

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Was: $995.00

Now: $950.00
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Hanna GroLine Nutrient Tester

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Now: $99.00
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Hanna pH 4.01 Calibration Buffer 20 mL Sachet

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HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)

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HM Digital 20 pack mix of 1000 ppm TDS, pH 4, pH7, pH storage solutions

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Now: $24.95
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HM Digital COM-100,PH-200, Protective Case & Solutions

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Was: $179.95

Now: $161.96
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HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester

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Now: $42.95
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HM Digital Hydromaster 100 - Continuous pH/TDS/EC/Temp meter

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Now: $289.95
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HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter

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Now: $359.95
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HM Digital Hydromaster Portable - pH/TDS/EC/Temp

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Now: $274.95
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HM Digital Hydromaster Replacement EC/TDS Probe

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HM Digital Pen style pH/Temp meter

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