Deep Water Culture (DWC) Hydroponic Bubbler 8 Bucket Kit with 6" Lids by PowerGrow &reg; Systems Easy to use complete Deep Water Culture Hydroponic System! 8 Growing Sites! Deep Water Kit Includes Industrial Air pump, air lines, (8) air stones, 6" basket lids, (8) 5 gallon FDA buckets + 1 Year USA Warranty (Beware - some other brands do not include airstones which results in lower oxygen levels!) Each Deep Water Culture bucket includes a water level indicator and drain so water changes are easy! Easily grow plants to maturity with the PowerGrow Deep Water Culture Kit - Made in the USA! Let's you grow 8 different plants to maturity in one system!