Grodan Big Mama - 8 in Block (8 in x 8 in x 8 in), case of 18 Mother Earth Controls and monitors CO2 from

Controls and monitors CO2 from 0 to 2000 parts per million (PPM)

Can CKV-4 (carbon type) is specially developed for this purpose

The Uvonair® CD-1200 ozone generator will treat all odors being exhausted by a 12 in (30 cm) ventilation system under most circumstances

110/120V standard household plug

Noise Level: <48dB

Grodan Big Mama - 8 in Block (8 in x 8 in x 8 in), case of 18 Mother Earth Controls and monitors CO2 fromGro Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro Block. Small plants can be fully grown in our larger Gro Blocks. Holes are perfect size for any 1. 5 in starter plug. Come in packs labeled with instructions. Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.