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The holes and the shoulders at the bottom help the drainage of water and avoid the formation of rotten parts
which in turn increases flower and fruit biomass
shore flies and whiteflies
3 CFM Single Stage Mini Vacuum Pump
high quality stainless steel & copper air manifold with individually controllable air outlets
Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip food-storage The holes and the shouldersNew 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
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