Grodan Gro-Block Improved Medium 4" GR7,5 w/ hole (4x4x3") (WRAPPED 6/strip 32 strips per case = 192 blocks per case) Aquagation -25°F to 160°F Range: Stays

-25°F to 160°F Range: Stays flexible in the cold and handles hot-water line flushing for year-round work

The breakthrough technology used in Rapid Rooter results in a unique matrix of composted materials bound together by plant-derived polymers

110-120 VAC

Number of Tumblers: 2 Hybrid (Wet and Dry)

8 L/M) The AC Infinity Hydroponics Air Pump is a vital component for any serious hydroponics gardener or aquaculture enthusiast

Grodan Gro-Block Improved Medium 4" GR7,5 w/ hole (4x4x3") (WRAPPED 6/strip 32 strips per case = 192 blocks per case) Aquagation -25°F to 160°F Range: StaysGrodan Gro Block Improved Medium 4" GR7,5 w hole (4x4x3") (WRAPPED 6 strip 32 strips per case = 192 blocks per case) Introducing the Grodan Gro Block Improved Medium 4" GR7,5 a breakthrough in horticultural substrate design. This state of the art block is meticulously engineered, keeping the evolving needs of modern growers in mind. State of the art Density & Hydrophilic Technology: The Grodan Medium 4" GR7,5 is the embodiment of sophisticated design