Pay in 4 interest-free payments of $4.25 Learn more
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
Pay in 4 interest-free payments of $4.25 Learn more
Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
Seal packaging between uses
The availability and composition of nutrients play a crucial role during the plant’s flowering stage
not a “rounded-up” dimension to make it seem bigger
Instead of calibrating
GH pH Calibration Solutions Size:32 Oz Seal packaging between usesHelp keep your system clean, buffered and growing. General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). GH technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used.
US$ 39.99
US$ 34.25
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US$ 29.99
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US$ 25.50