Grodan products have
been produced since 1969 and
are known worldwide for their
consistently superior quality
Rockwool. The "Delta"
technology ensures perfectly
uniform products that are
totally inert, which provides
a clean medium for growing
healthy plants. Grodan
stonewool undergoes rigorous
testing at the factory and has
earned ISO 9001 quality
rating. There really is no
other choice, using Grodan
Rockwool makes hydroponics
easy.
