This oversized single site grow system can grow big plants! It offers a 6.6 gallon gro site, grow media, air pump with tubing, air stone and a 10 inch mesh insert that promotes outstanding root growth. It also comes with a grommet and tee fitting to daisy chain or easily drain the sites. Comes with everything you'll need to be growing big plants quickly! Flo-n-Gro® is the only way to go!