RedRock Grow Block PRO, 6" x 6" x 5.3" (Case of 48) controllers - Automatically activates the ventilation

- Automatically activates the ventilation fan by detecting pressure change to eliminate manual adjusting

Easily changed via toggle type fasteners

UV to NIR)

Understanding the NPK and Composition

No more switching between meters for your routine measurements

RedRock Grow Block PRO, 6" x 6" x 5.3" (Case of 48) controllers - Automatically activates the ventilationRedRock Grow Block PRO, 6" x 6" x 5. 3" (Case of 48) Dimensions: 42 40 Hole 15x15x13. 5cm Commercial grade stone wool pro starter blocks sourced and manufactured in North America. Our Stone wool is made in the USA Wetting agent ensures nutrients are immediately plant available The high fiber density of the stone wool starter blocks makes better use of water and fertilizers while allowing dry back Our stone wool starter blocks are priced for commercial