-
- Meters & Solutions
Active Air 2-Way Moisture/pH Meter
- $13.95
- Active Air 2-Way Moisture/pH Meter
-
- Meters & Solutions
Active Aqua pH Test kit
- $7.99
- Active Aqua pH Test kit
-
- Meters & Solutions
Alchemist ph Up Qt
- $19.99
- Alchemist® pH Up Non-Caustic - 1Q
-
- Meters & Solutions
Alchemistph Down Qt
- $19.99
- Alchemist® pH Down Non-Corrosive - 1Q
-
- Meters & Solutions
Aquapro TDS Water Tester
- $42.95
- HM Digital™ Aquapro TDS AP-1 Water Tester
-
- Meters & Solutions
Bluelab 7.0 Cal Solution – 250ml
- $10.99
- Bluelab 7.0 Cal Solution - 250ml
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- Meters & Solutions
Bluelab Carry Case
- $30.74
- Bluelab Carry Case
-
- Meters & Solutions
Bluelab Conductivity Pen
- $104.94
- Bluelab® ppm Pen — Now Bluelab® Conductivity Pen
-
- Meters & Solutions
Bluelab Multimedia pH Meter with Leap pH Probe
- $295.74
- Bluelab Multimedia pH Meter with Leap pH Probe
-
- Meters & Solutions
Bluelab Original Truncheon Nutrient Meter
- $157.94
- Bluelab Original Truncheon Nutrient Meter
-
- Meters & Solutions
Bluelab pH 4.0 Calibration Solution – 500mL
- $19.99
- Bluelab pH 4.0 Calibration Solution - 500mL
-
- Meters & Solutions
Bluelab pH 4.0 Calibration Solution – 250mL
- $12.99
- Bluelab pH 4.0 Calibration Solution – 250mL
-
- Meters & Solutions
Bluelab Ph Meter
- $210.90
- Bluelab pH Meter with Probe
-
- Meters & Solutions
Bluelab pH Pen
- $126.14
- Bluelab® pH Pen
-
- Meters & Solutions
Bluelab ph Probe Solution 250ml
- $24.99
- Bluelab pH Probe KCI Storage Solution - 250ml
-
- Meters & Solutions
Bluelab Probe Care Kit pH & Conductivity
- $32.99
- Bluelab Probe Care Kit pH & Conductivity
-
- Meters & Solutions
Bluelab Replacement pH Probe
- $83.74
- Bluelab Replacement pH Probe
-
- Meters & Solutions
Bluelab® pH 7.0 Calibration Solution – 500mL
- $19.99
- Bluelab® pH 7.0 Calibration Solution - 500mL
-
- Meters & Solutions
Botanicare pH Down – 1q
- $11.95
- Botanicare pH Down - 1Q
-
- Meters & Solutions
Botanicare pH Up – 1q
- $11.95
- Botanicare pH Up - 1Q
-
- Meters & Solutions
CYCO pH 4.0 Calibration Solution – 1L
- $21.00
- CYCO pH 4.0 Calibration Solution - 1L
-
- Meters & Solutions
Earth Juice Natural Down – 1.6lb
- $19.99
- Earth Juice Natural Down 1.6 lb
-
- Meters & Solutions
Earth Juice Natural Up – 2 lb
- $21.99
- Earth Juice Natural Up 2 lb
-
- Meters & Solutions, Water & Aeration
Emerald Harvest pH Down – QT
- $25.99
- Emerald Harvest pH Down - QT
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- Meters & Solutions, Water & Aeration
Emerald Harvest pH Up – QT
- $25.99
- Emerald Harvest pH Up - QT
-
- Meters & Solutions
General Hydroponics 1500 PPM Reference Solution – 8oz
- $8.66
- General Hydroponics 1500 PPM Reference Solution - 8oz
-
- Meters & Solutions
General Hydroponics pH 4.01 Calabration Solution – 8oz
- $9.99
- General Hydroponics pH 4.01 Calibration Solution - 8oz
-
- Meters & Solutions
General Hydroponics pH 4.01 Calibration Solution – QT
- $26.99
- General Hydroponics pH 4.01 Calibration Solution - 1Q
-
- Meters & Solutions
General Hydroponics pH 7.01 Calibration Solution – QT
- $26.99
- General Hydroponics 7.01 Calibration Solution - 1Q
-
- Meters & Solutions
General Hydroponics pH Control Kit
- $22.99
- General Hydroponics® pH Control Kit
-
- Meters & Solutions
General Hydroponics pH Down Liquid – 1G
- $34.99
- General Hydroponics pH Down - 1G
-
- Meters & Solutions
General Hydroponics pH Down Liquid – QT
- $14.39
- General Hydroponics® pH Down Liquid - 1Q
-
- Meters & Solutions
General Hydroponics pH Test Kit – 1oz
- $7.54
- General Hydroponics pH Test Kit - 1oz
-
- Meters & Solutions
General Hydroponics pH Up Liquid – QT
- $14.39
- General Hydroponics pH Up Liquid - 1Q
-
- Meters & Solutions
General Organics pH 7.01 Calabration Solution – 8oz
- $9.99
- General Hydroponics pH 7.01 Calibration Solution - 8oz
-
- Meters & Solutions
GH pH Up – 1G
- $34.99
- GH pH Up - 1G
-
- Meters & Solutions
HM Digital Handheld TDS Tester Model TDS-3
- $27.95
- HM Digital Handheld TDS Tester Model TDS-3
-
- Meters & Solutions
HM Digital pH 80 Meter
- $49.99
- HM Digital™ PH-80 pH Meter
-
- Meters & Solutions
Infrared Thermometer 9 Volt
- $36.89
- Ideal-Air™ Infrared Thermometer
-
- Meters & Solutions
Martini pH55 – pH/Temp Tester
- $88.99
- Milwaukee Instruments Martini pH55 pH/Temp Tester
-
- Meters & Solutions
Milwaukee pH Meter pH600 AQ
- $33.95
- Milwaukee Instruments pH600 AQ pH Tester
-
- Meters & Solutions
PH Down
- $25.74
- Advanced Nutrients PH Down - 1Q
-
- Meters & Solutions
pH Electrode Storage Solution –
- $8.99
- HM Digital™ pH Electrode Storage Solution
-
- Meters & Solutions
pH Indicator Solution Test Kit
- $5.95
- Sure Test pH Indicator Solution Test Kit
-
- Meters & Solutions
pH Probe KCl Storage Solution 1
- $12.99
- Bluelab pH Probe KCI Storage Solution
-
- Meters & Solutions
PH UP
- $25.74
- Advanced Nutrients pH Up - 1Q
-
- Meters & Solutions
Rapitest Digital Plus SoilMeter
- $28.99
- Rapitest Digital Plus Soil pH Meter
-
- Meters & Solutions
Rapitest ph Soil Tester
- $5.99
- Luster Leaf® Rapitest® pH Soil Tester
-
- Meters & Solutions
Sure Test Base pH Pen +/- 0.3
- $50.60
- Sure Test Base pH Pen +/- 0.3
-
- Meters & Solutions
Sure Test Commercial Multi-Meter
- $379.50
- Sure Test Commercial Multi-Meter
-
- Meters & Solutions
Sure Test Commercial Replacement EC Probe
- $84.35
- Sure Test Commercial Replacement EC Probe
-
- Meters & Solutions
Sure Test Commercial Replacement pH Probe
- $84.35
- Sure Test Commercial Replacement pH Probe
-
- Meters & Solutions
Sure Test ph Test Strip Kit 5.5
- $10.99
- Sure Test® pH Test Strip Kit
-
- Meters & Solutions
Sure Test Pro pH Pen Replacement Probe
- $78.05
- Sure Test Pro pH Pen Replacement Probe
-
- Meters & Solutions
Sure Test Pro pH Pen w/ Replaceable Probe +/- 0.05 ATC
- $126.50
- Sure Test Pro pH Pen w/ Replaceable Probe +/- 0.05 ATC
-
- Meters & Solutions
TNB Naturals ph Down 1lb
- $20.00
- TNB Naturals pH Down - 1lb
-
- Meters & Solutions
TNB Naturals ph Up 1lb
- $20.00
- TNB Naturals pH Up - 1lb