
General Hydroponics pH Control Kit
PHT4000
Complete pH Testing & Adjustment Kit for Hydroponic Nutrient Solutions
Maintaining the correct nutrient solution pH is essential for healthy plant growth in hydroponic systems. The General Hydroponics pH Control Kit provides everything growers need to test and adjust pH levels quickly and accurately, ensuring plants can properly absorb nutrients and thrive.
This convenient kit includes pH Up, pH Down, and a liquid pH test indicator with test vial, allowing growers to easily measure nutrient solution acidity and make precise adjustments for optimal plant performance.
Ideal for hydroponic gardens, greenhouse crops, and soil-less growing systems, this kit helps maintain the optimal pH range needed for strong root development, nutrient uptake, and vigorous plant growth.
Key Features
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Complete pH Management Kit
Includes everything needed to test and adjust nutrient solution pH, simplifying hydroponic system maintenance.
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Accurate Liquid pH Testing
The included indicator solution and test vial allow growers to quickly measure the pH of nutrient solutions using a simple color comparison method.
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Easy pH Adjustment
Use small amounts of pH Up (potassium hydroxide) to raise pH or pH Down (phosphoric acid) to lower pH until the desired range is achieved.
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Supports Healthy Nutrient Uptake
Maintaining proper pH helps plants absorb essential nutrients efficiently. Most hydroponic crops perform best between pH 5.5–6.5, where nutrient availability is highest.
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Simple & Reliable Testing Method
Just fill the test vial with nutrient solution, add a few drops of indicator, and compare the color to the included chart for an instant reading.
Pairs well with
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