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Grodan 4x4x2.5 Rockwool Grow Block w/holes 6/per strip

Grodan 4x4x2.5 Rockwool Grow Block

• six - 4x4x2.5\" growing blocks per 23.5\" strip
• With 42/40 size holes
• Use for direct sowing tomato and cucumber sized plants
• Use in combination with AO3640 multi-block cubes

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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

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