deep water culture (dwc) hydroponic bubbler bucket grow kit system, 5 gallon, 4 site with connected reservoir artisun technology the deep water culture (dwc) system grow kit makes growing with hydroponics easy. large square 5 gallon buckets with 4 inch net pots are great for tomatoes, peppers, peas, beans and other vining crops. the super quiet air pump provides 15 l/min to individual air stones in each bucket providing oxygenated water for optimal root health and faster, healthier growth. four grow buckets are connected to a common reservoir bucket making top-up and nutrient balancing easy. easy setup with high quality 3/4" tub fittings and tubing. air pump operates from 110v ac outlet. system includes: 5 qty black 5 gallon square buckets, 4 black lids with a 4" hole, 4 net pots, 1 black lid for reservoir bucket, 15 l/min air pump (please note air pump model supplied may differ from picture shown based on availability at time of order, all variations are the same specifications just different manufacturer), 4 air stones, 40' black air tubing, 4 x 3/4" tee fittings, 2 x 3/4" straight fittings, 5 x black 24" 3/4" pipe lengths, 3l clay pebbles. also see our recirculating deep water culture (rdwc) system