Hydrofarm RS5GALSYS Root Spa Deep Water Culture Bucket System, 5 Gallon, Black Water tight seal to guarantee no leaks 8" bucket basket to hold your choice of growing medium Multi-purpose air hose delivers air from the pump to the bottom of the bucket Air pump to oxygenate your water to encourage root growth Includes " grommet fitting, " elbow fitting, " black tubing, Clay pebble media sold separately