The Growth Technology PH Probe Refill & Storage Solution is a 300ml liquid pH calibration solution perfect for hydroponics. Made with mineral ingredients, this concentrate formula is designed to be used with pH probes to ensure accurate readings for a variety of plants including foliage, forage, fruit, garden, berries, mushrooms, and more. This solution, produced in the United Kingdom by Growth Technology, comes in a convenient bottle packaging and is a must-have for maintaining optimal pH levels in your Grow Room or garden.
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