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PH/TDS Modifiers & Calibration

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Advanced Nutrients PH Down 1L
Advanced Nutrients PH Down is used to maintain the optimum pH levels for hydroponically grown, sphag..
$25.99 $21.99
Advanced Nutrients PH Down 4L
Advanced Nutrients PH Down is used to maintain the optimum pH levels for hydroponically grown, sphag..
$82.99 $69.99
Advanced Nutrients PH Up 1L
Advanced Nutrients PH Up is used to maintain the optimum pH levels for hydroponically grown, sphagnu..
$25.99 $21.99
Advanced Nutrients PH Up 4L
Advanced Nutrients PH Up is used to maintain the optimum pH levels for hydroponically grown, sphagnu..
$82.99 $69.99
Bluelab pH Probe KCl Storage Solution - 100 ml
Bluelab pH Probe KCl Storage Solution - 100 ml The perfect solution to store and hydrate your Blu..
$14.99
Bluelab®  pH Pen
Bluelab® pH Pen The ultimate handy solution for measuring pH and temperature! Plants get ..
$149.99 $119.99
Bluelab® Combo Meter - FREE SHIPPING*
Bluelab Combo Meter It's all you need for simple and reliable crop management. The Bluelab Com..
$375.99 $329.99
Bluelab® Multimedia pH Meter with Leap™ pH Probe
The pH level of solutions, soils, substrates, media and nutrient solutions strongly influences crop ..
$365.99 $335.99
Bluelab® pH 4.0 Calibration Solution 500ml
Bluelab® pH 4.0 Calibration Solution 500ml Bluelab pH 4.0 Calibration Solutions pH instru..
$13.99
Bluelab® pH 7.0 Calibration Solution 250ml
Bluelab® pH 7.0 Calibration Solution 250ml Bluelab pH 7.0 Calibration Solutions pH instru..
$9.99
Bluelab® pH 7.0 Calibration Solution 500ml
Bluelab® pH 7.0 Calibration Solution 500ml Bluelab pH 7.0 Calibration Solutions pH instru..
$13.99
Bluelab® pH Meter
Bluelab® pH Meter Accurately measures the pH value of a solution so you know if any adjustments a..
$289.99 $259.99
Bluelab® pH Probe
Bluelab® pH Probe A replacement probe for Bluelab Combo and pH Meters, and Guardian Monitors ..
$117.99 $87.99
Bluelab® Probe Care Kit – pH & Conductivity
Bluelab® Probe Care Kit – pH & Conductivity Everything you need to clean, hydrate and ca..
$29.99
Bluelab® Soil pH Meter
Bluelab® Soil pH Meter The portable way to measure pH of growing media. Direct soil pH measuring ..
$294.99 $264.99