General Hydroponics®, pH Control Kit (includes pH up, pH down, and pH test indicators) [Case of 12] HVAC & HOME VENTILATION Zinc from Zinc EDTA

Zinc from Zinc EDTA

When using a Siphon Mixer or Irrigation Injector

- 1 Device on a Recycling Timer

Dispose of properly after use

KDF85/Granulated Catalytic Activated Carbon removes up to 99% of chlorine and chloramines

General Hydroponics®, pH Control Kit (includes pH up, pH down, and pH test indicators) [Case of 12] HVAC & HOME VENTILATION Zinc from Zinc EDTAMinimum quantity required 12 General Hydroponics, pH Control Kit (includes pH up, pH down, and pH test indicators) For A Balanced Nutrient Solution The General Hydroponics pH Test Indicator can help you maintain an ideal pH level (which is between 5. 5 and 6. 5). This can be achieved by monitoring your pH using the super concentrated drops found with the test indicator. Based on the test results, pH Up or pH down (available separately) can be added to