Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip Reflectors & Grow Lights Handy for direct pH testing

Handy for direct pH testing of soils or pH soil solutions

CenturionPro 3HP Switch Box

industrial grade units capable of pulling 190 pints per day in optimum environments (see specifications)

000°K - 4

Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip Reflectors & Grow Lights Handy for direct pH testingNew Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a