pH, PPM and other Meters
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General Hydroponics pH Test Kits
Starting at: $5.51
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Bluelab pH Pen
Regular Price: $129.99
Special Price $88.26
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Bluelab ppm pen
Regular Price: $129.95
Special Price $63.20
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BlueLab Ph Probe
Regular Price: $99.95
Special Price $67.60
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Calibration Solutions
Starting at: $7.42
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PH-80: pH HydroTester
Regular Price: $78.99
Special Price $40.08
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TDS-3 Handheld TDS Meter With Carrying Case
Regular Price: $46.99
Special Price $20.99
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COM-80: EC/TDS HydroTester
Regular Price: $50.95
Special Price $28.91
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Bluelab Soil PH Meter
Regular Price: $257.99
Special Price $166.16
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