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Advanced Nutrients
Advanced Nutrients pH Up & Down 1L Bundle
Sale price$41.87
Regular price$47.99
In stockSave $2.74

General Hydroponics
General Hydroponics: pH Down PRO 1 Gallon
Sale price$48.25
Regular price$50.99
In stockSave $1.00

Alfred
Alfred's pH Paper Test Strips (150 strips) For Plant Health
Sale price$10.99
Regular price$11.99
In stockSave $120.04

BlueLab
Bluelab Combo Plus Meter - Probe Included For Plant Health
Sale price$359.95
Regular price$479.99
In stockSave $369.05

BlueLab
Bluelab pH Controller - Connect For Plant Health
Sale price$679.95
Regular price$1,049.00
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BlueLab
Bluelab: Commercial Truncheon Nutrient Meter For Plant Health
Sale price$189.95
Regular price$209.99
In stockSave $5.04


AquaMaster Tools
AquaMaster P160 pH EC PPM TDS Temp Combo Meter For Plant Health
Sale price$184.95
Regular price$189.99
In stockSave $10.04


AquaMaster Tools
AquaMaster P110 Pro pH EC Temp Combo Meter For Plant Health
Sale price$134.95
Regular price$144.99
In stockSave $2.00


AquaMaster Tools
AquaMaster P50 Pro pH Temp Meter For Plant Health
Sale price$102.95
Regular price$104.95
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AquaMaster Tools
AquaMaster E50 Pro EC Temp Meter For Plant Health
Sale price$94.95
Regular price$99.99
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AquaMaster Tools
AquaMaster E300 Pro Substrate EC/Temp Meter For Plant Health
Sale price$199.95
Regular price$204.99
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AquaMaster Tools
AquaMaster S300 Pro 2 Substrate pH/Temp Meter For Plant Health
Sale price$184.95
Regular price$189.99
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AquaMaster Tools
AquaMaster P700 Pro 2 pH EC CF PPM Combo Meter For Plant Health
Sale price$349.95
Regular price$359.99
In stockSave $110.04

BlueLab
Bluelab Multimedia pH Meter (Leap Probe Included) For Plant Health
Sale price$339.95
Regular price$449.99
In stockSave $50.04

BlueLab
Bluelab Pulse Multimedia EC/MC Meter For Plant Health
Sale price$369.95
Regular price$419.99
In stockSave $40.04


BlueLab
Bluelab: Ppm EC Conductivity Pen For Plant Health
Sale price$99.95
Regular price$139.99
In stockSave $0.79

BlueLab
Bluelab: 7.0 and 4.0 Calibration Solution 20 ml Sachet
Sale priceFrom $2.20
Regular price$2.99
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BlueLab
Bluelab: Probe Care Kit for Conductivity Probes
Sale price$19.20
Regular price$21.99
In stockSave $240.04

BlueLab
Bluelab Guardian Monitor Connect In-Line For Plant Health
Sale price$659.95
Regular price$899.99
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Alfred
Alfred's Digital Hydro Tester - EC/TDS/Temperature For Plant Health
Sale price$48.95
In stockSave $30.00

Alfred
Alfred Digital pH Meter Model PH-1 For Plant Health
Sale price$59.99
Regular price$89.99
In stockSave $25.00

hm
HM Digital HydroTester 80s - The Ultimate EC/TDS/TEMP Meter For Plant Health
Sale price$64.99
Regular price$89.99
In stockSave $15.04


BlueLab
Bluelab Meter Carry Case for Bluelab Combo Meters
Sale price$69.95
Regular price$84.99
In stock