Can-Fan Replacement Intake Filter 4 in - 6 in 1 ea = 5 / Pack no-shipping Grodan Stonewool (rockwool) is made

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes

Keep your plants productive and green in any growing medium with this calcium-magnesium supplement

an aroma and resin enricher

so there’s little waste of the valuable nutrients being fed to the crops

FloraNova Bloom induces phenomenal aroma

Can-Fan Replacement Intake Filter 4 in - 6 in 1 ea = 5 / Pack no-shipping Grodan Stonewool (rockwool) is madeEasily changed via toggle type fasteners on the top of the intake filter housing. These filters have very low air resistance. MERV 5 mesh blocks pollen, dust and other particulate from entering the filter. Match to your filter size.