0 items in cart
Subtotal: $0.00
The order subtotal is less than the minimum allowed value ($10.00)
Be the first and leave a feedback.
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters. General Hydroponics™ technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used.