General Hydroponics pH Reference Solutions

General Hydroponics pH 4.01 and pH 7.01 Standard Reference Solutions

Choose from the following products:

pH 4.01 standard reference solution 8oz
pH 4.01 standard reference solution Quart
pH 7.01 standard reference solution 8oz
pH 7.01 standard reference solution Quart

---

Hydroponic Systems

• Ebb and Flow
• Aero Garden
• Hydrofarm
• Cloning
• Drip Systems
• General
• Aeroponic

Hydroponic Grow Lights & Bulbs

• LED
• HPS
• HID
• Metal Halide
• Fluorescent
• CFL
• Conversion
• Ballasts
• Reflectors