| Management number | 250718915 | Release Date | 2026/09/17 | List Price | US$7.45 | Model Number | 250718915 | ||
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The General Hydroponics 4-Piece pH Control Kit provides everything needed to manually test, raise, and lower the pH of hydroponic nutrient solutions. It combines a wide-range liquid pH indicator with General Hydroponics pH Up and pH Down, making it easy to monitor and correct nutrient-solution pH without a digital meter.
The indicator solution covers a broad pH range from 4.0 to 8.5. Many hydroponic crops are commonly grown within a nutrient-solution range of approximately 5.5 to 6.5, although the correct target depends on the crop, growing medium, and feeding program.
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