Products | Drums | Flagons | Bottles Jerrycans (1-10 Litre) | Jerrycans (15-25 Litre) Jerrycans 20 Litre Twin Top Plastic Industries, Onehunga, has been in business more than 50 years. With a staff of 32, it specialises in consumer and industrial rigid plastic containers, ranging in size from 450ml to 100 litres. The large Series 100 drum has been designed to meet OSH safety standards for the handling of heavy containers and is suitable for dispensing a variety of both toxic and consumable liquids.