30 Litres: height 36cm, diameter 40cm 60 Litres: height 61cm, diameter 40cm 120 Litres: height 78cm, diameter 50cm 210 Litres: height 97cm, diameter 56cm - Please note there is a carriage surcharge of £4.70 on the 210 litre size (on each additional fermenter when ordering 2 or more), due to the large volume.