Grodan Gro-Block Improved GR4 Small with Hole, 3" x 3" x 2.5" - Case of 384 Select Rockwool Type:GR7.5 Medium w/ Hole, 4" x 4" x 3" - Case of 192 then the purified air is

then the purified air is mixed with friendly oxidizer plasma generated by the IO generators and is released into the surrounding area killing any mold spores

Big Time Exterminator is the most cost effective way to keep your plants free of harmful pests

Whats in the box

as heat and humidity don't build up as much with more open space for your plants to breathe

and efficient for all your extraction needs

Grodan Gro-Block Improved GR4 Small with Hole, 3" x 3" x 2.5" - Case of 384 Select Rockwool Type:GR7.5 Medium w/ Hole, 4" x 4" x 3" - Case of 192 then the purified air isNew and improved stone wool substrate with advanced wetting technology from Grodan Introducing Grodan Gro Blocks Improved, a product specifically engineered to deliver real results for your crops, developed by plant scientists, researchers, and top growers. A core component of the "Precision Growing" philosophy, Grodan Gro Blocks Improved with Advanced Wetting Technology allow you to cultivate more uniform and high quality crops while using less water