The Ph Probe Cleaning Solution and Refill Set by Growth Technology includes a 300ml bottle of liquid pH calibration solution. This set is designed to ensure accurate readings from your pH probe, allowing you to easily clean and refill your probe for optimal performance. With the convenient packaging in a bottle, this set is compact and easy to handle, making it a practical choice for any hydroponic or gardening enthusiast looking to maintain the pH levels of their system.
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