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pH/EC/TDS Meters & Solutions

Sale -45%
Advanced Nutrients AN pH Down

Advanced Nutrients AN pH Down

PH DOWN
When Your pH Is Too High, You Need pH-Down
-- The Highest Concentratio..
$180.08 $99.04
Sale -12%
Bluelab Bluelab 7.0

Bluelab Bluelab 7.0

Bluelab® pH 7.0 Calibration Solution
$1.92 $1.69
Sale -41%
Nectar for the Gods NG Olympus Up

Nectar for the Gods NG Olympus Up

Olympus Up
$144.99 $86.13
Sale -40%
Emerald Harvest Emerald Harvest pH Down

Emerald Harvest Emerald Harvest pH Down

Emerald Harvest® pH Down
Keep your nutrient solution in the sweet spot with Em..
$171.84 $103.95
Sale -15%
General Hydroponics GH pH Down

General Hydroponics GH pH Down

General Hydroponics® pH Down Liquid
$14.39 $12.23
Sale -12%
Hanna Instruments GroLine Calibration Sol 4.01 230 ML

Hanna Instruments GroLine Calibration Sol 4.01 230 ML

HI7004-023 is a high quality pH 4.01 calibration buffer that is NIST traceable a..
$16.50 $14.49
Sale -45%
Advanced Nutrients AN pH Up

Advanced Nutrients AN pH Up

PH UP
When Your pH Is Too Low, You Need pH-Up
-- The Highest Concentration in ..
$180.08 $99.04
Sale -15%
Bluelab Bluelab Storage Solution

Bluelab Bluelab Storage Solution

Bluelab® pH Probe KCI Storage Solution
$24.50 $20.83
Sale -15%
Bluelab Bluelab Meter Combo

Bluelab Bluelab Meter Combo

Bluelab® Combo Meter
$348.74 $296.43
Sale -12%
Hanna Instruments GroLine Cleaning Solution 230 ML

Hanna Instruments GroLine Cleaning Solution 230 ML

HI7061-023 is the GroLine general purpose cleaning solution that can be used for..
$16.50 $14.49
Sale -14%
Bluelab Bluelab Probe Soil

Bluelab Bluelab Probe Soil

Bluelab Replacement pH Probe
$110.00 $94.49
Sale 3%
Cutting Edge Solutions CES PH Up

Cutting Edge Solutions CES PH Up

CES pH Up™

Concentrated pH adjustment liquid, alkaline buffer raises water ..
$32.50 $33.60
Sale -15%
Bluelab Bluelab 4.0

Bluelab Bluelab 4.0

Bluelab® pH 4.0 Calibration Solution
$18.90 $16.07
Sale -15%
Bluelab Bluelab 2.77

Bluelab Bluelab 2.77

Bluelab® 2.77 EC Conductivity Standard Solution
$10.50 $8.93
Sale -15%
General Hydroponics GH pH Up

General Hydroponics GH pH Up

General Hydroponics® pH Up Liquid
$14.39 $12.23
Sale 0%
General Hydroponics GH pH 7.01 Solution

General Hydroponics GH pH 7.01 Solution

General Hydroponics® Meter Calibration Solutions
$23.84 $23.84
Sale -15%
Emerald Harvest Emerald Harvest pH Up Gallon/3.79 Liter

Emerald Harvest Emerald Harvest pH Up Gallon/3.79 Liter

Keep your nutrient solution in the sweet spot with Emerald Harvest® pH Up. A pH..
$81.51 $69.28
Sale -19%
GroStar GroStar GS4 pH/EC Combo Pen GS4

GroStar GroStar GS4 pH/EC Combo Pen GS4

Features:
• Measures pH, conductivity (EC and 500ppm/700ppm) and temperature ..
$178.99 $144.49
Sale -12%
Hanna Instruments Groline Probe Inline

Hanna Instruments Groline Probe Inline

The HI1285-9 inline multiparameter probe measures pH, EC/TDS, and temperature in..
$290.00 $254.99
Sale -13%
Hanna Instruments GroLine Probe Combo

Hanna Instruments GroLine Probe Combo

The HI1285-7 is a 3-in-1 pre-amplified multiparameter probe that measures pH, EC..
$155.00 $134.99
Sale -12%
Hanna Instruments GroLine EC/TDS Tester GroLine EC/TDS Tester

Hanna Instruments GroLine EC/TDS Tester GroLine EC/TDS Tester

The HI98318 is our latest pocket meter for measuring the EC/TDS of a hydroponic ..
$85.00 $74.99
Sale -15%
Bluelab Bluelab Probe Water

Bluelab Bluelab Probe Water

Bluelab Replacement pH Probe
$83.74 $71.18
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