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Because some states recognize only the acid-insoluble method
Use what you need and save the rest for later
Gold Label Coco A&B is a professional grade two part nutrient for the vegetative and flowering phase in coco and coco-based substrates
Increases Phosphorus uptake
Hanna GroChek pHEP 4 Meter veg nutrients Because some states recognize onlyThe pHEP 4 includes a dual level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability indicator, automatic shut off, electrode removal tool, and automatic calibrationall in a floating, waterproof casing. It is ideal for users who require the greatest accuracy and features while staying economical. Features Waterproof and designed to float Automatic temperature compensation Automatic calibration Tactile grip casings HOLD
US$ 164.95
US$ 95.00
US$ 38.00
