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The tray fits inside a standard 10 x 20 flat
along with positive “On†and “Off†settings
when the plants need CO2
we recommend the DEH 3000R Wall Mounted Unit #700833
This tester has automatic temperature compensation (ATC) and is water-resistant
Gro Block Improved Medium 4Inches GR7,5 w/ hole (4Inchesx4Inches3.1Inches) wrapped (6/strip- 32 strips per cs) 192 per case botanicare-outside-dimension-od-black-trays The tray fits inside aNew 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