Easy2grow 4 pot system includes: 1x 47 ltr tank, lid & 9mm top hat grommet 2x 2Pot tray and lid 4x 8.5 litre pots (optional upgrade to 15ltr pots) 2x AQUAvalve 2x 9mm inline tap 4x root control discs 4x marix discs 1x 3 metres of 9mm pipe 1x 9mm golf filter 2x 9mm tee