Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip spl_dlw This premium double-ended lamp outputs

This premium double-ended lamp outputs 580 μmol/s of photosynthetic photon flux (PPF 400-700nm) for superior performance in indoor grows and greenhouse environments

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Triple surface aluminum fins and elevated rubber feet provide the most efficient cooling in its class

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Twister Vacuum Body Support T2

Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip spl_dlw This premium double-ended lamp outputsNew 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