General Hydroponics pH 4.01 Calibration Solution Size:1 Quart Comes with 2 fittings to

Comes with 2 fittings to allow chiller to be plumbed with 1 in hard PVC pipe or 1 in flexible tubing

Improves nutrient absorption and plant resilience

and fuller canopies through natural biological stimulation

such as coco and rockwool

used as a top dress or steeped to make a potent foliar tea

General Hydroponics pH 4.01 Calibration Solution Size:1 Quart Comes with 2 fittings toGeneral 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