The BLUELAB TRUNCHEON EC/CF/PPM NUTRIENT METER TESTER is a pH calibration solution in stick form, suitable for all-purpose use in hydroponics gardening. Made with potassium nitrate as the main ingredient, this organic-free solution comes in a 2.1L volume packaged in a box. Designed by the trusted brand Bluelab, this product is perfect for monitoring and adjusting nutrient levels in your garden or patio to ensure optimal plant growth and health. BRAND NEW IN BOX!!
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