Grow Cap 4inch Built-in overflow system where exccess water and nutrients aredelivered straight to the rootball.
Grow Cap 4inch helps eliminates algae, stops powdery mildew and does away with pesticides.
Place the revolutionary, Grow Cap 4inch on your rockwool cubes, and maximize your space in the vegetative cycle. Each Grow Cap 4inch features 17 holes designed louvers for the 4 in, to block light, while allowing air, water and nutrients to your plant. Feed your plants less, allow the root zones to dry at more consistent rates with the Grow Cap that strategically covers the top of the media, while allowing in the necessary oxygen they need to thrive.