General Hydroponics pH 4.01 Calibration Solution Botanicare enabling them to better absorb

enabling them to better absorb nutrients and thrive throughout their life cycle

stressed transplants

phosphorus and potassium throughout the crop life cycle

Patented Technology: Backed by innovation and proven performance for gardeners and commercial growers alike

Widely used to provide oxygen in aquariums

General Hydroponics pH 4.01 Calibration Solution Botanicare enabling them to better absorbGeneral Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used. Free Standard shipping