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pH, TDS, EC, PPM

General Hydroponics GH pH Test Indicator 8 oz
General Hydroponics

GH pH Test Indicator 8 oz

$14.68 $8.81
General Hydroponics GH pH Test Kit 1 oz (24/Cs)
General Hydroponics

GH pH Test Kit 1 oz (24/Cs)

$9.59 $5.75
General Hydroponics GH pH Down Liquid Quart (12/Cs)
General Hydroponics

GH pH Down Liquid Quart (12/Cs)

$14.39 $8.63
General Hydroponics GH pH Up Liquid Gallon (4/Cs)
General Hydroponics

GH pH Up Liquid Gallon (4/Cs)

$35.87 $21.52
General Hydroponics GH pH Up Liquid Quart (12/Cs)
General Hydroponics

GH pH Up Liquid Quart (12/Cs)

$14.39 $8.63
General Hydroponics GH pH Control Kit (12/Cs)
General Hydroponics

GH pH Control Kit (12/Cs)

$22.98 $13.79
General Hydroponics GH pH 7.01 Calibration Solution Quart (12/Cs)
General Hydroponics

GH pH 7.01 Calibration Solution Quart (12/Cs)

$25.75 $15.45
General Hydroponics GH pH 4.01 Calibration Solution 8 oz (12/Cs)
General Hydroponics

GH pH 4.01 Calibration Solution 8 oz (12/Cs)

$9.03 $5.42
Bluelab Combo Meter
 

Bluelab Combo Meter

$348.74 $209.24
Bluelab Guardian Monitor
 

Bluelab Guardian Monitor

$445.20 $267.12
Bluelab Conductivity Pen
 

Bluelab Conductivity Pen

$104.94 $62.96

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