HOTBIN mega expansion kitHOTBIN Mega Expansion Kit allows for the expansion of the HOTBIN Mega 450 Litres into a 700 Litre unit. Whats Included HOTBIN Mega Expansion Kit 2 Long Walls, 2 Short Walls User Guide Aeration Valve 1 Ratchet Strap Size 1160mm Wide 860mm Deep 495mm High Capacity Adds an additional 250 Litre capacity to the HOTBIN Mega (450) Weight 9 kg assembled 10. 5 kg delivered boxed Situating the HOTBIN In sun or shade A flat surface soil, patio, grass or gravel