Grodan Pro A-OK 50/40 6/15, 2"x2", case of 1,500 commercial-lighting-fixtures Fits Metal Halide ballast

Fits Metal Halide ballast

This series provides from 1 to 12 "ON/OFF" operations daily with minimum ON/OFF times of 1 hour

tighter internodal spacing and increased production overall

and easy to store

Everything you need to grow fresh herbs all year round

Grodan Pro A-OK 50/40 6/15, 2"x2", case of 1,500 commercial-lighting-fixtures Fits Metal Halide ballastGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen