Inner Container: PC 215c.c., outer pot: PC 500c.c. 48units/CTN ; 4.3c.u.f.t ; G.W.:17KG; N.W.16KG 20` container?81CTNS (9168 units); 40` container?21CTNS (20208 units) PRODUCT FUNCTION: The outer and inner containers can be used independently, so there is no need for other utensils. Automatic filtering: when the tea has finished brewing in the inner container, just press a button and it is filtered automatically as it flows into the outer container. A serving pitcher. When the tea in the inner container flows into the outer container, the tea stops brewing and, at the same time, is mixed together. Thus oversteeping is avoided and it is easy to maintain consistent quality. A tea cup. The outer container can be used as a drinking cup for personal use. Fog-resistant. When the inner container is attached to the edge of the outer container using four of its six feet (applicable to models PC-656, 657 and 658), the inner container will not become fogged. Therefore one can watch the tea leaves ``dance`` and evaluate the quality of the tea leaves. Environmentally friendly. This product is made of food-grade PC and grade 304 stainless steel. Both materials can be recycled. Sanitary. Since the body of a Piao-I Pot is transparent, one can see through it and clean it very easily.