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 Built-in defrost that is designed

Built-in defrost that is designed for operation down to 41°F

This tester has automatic temperature compensation (ATC) and is water-resistant

when the plants need CO2

along with positive “On” and “Off” settings

LP and NG replacement burners

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 Built-in defrost that is designedNew 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