This is a large soft EPDM foam rubber gasket with outer diameter of 310 mm and inner diameter of 260 mm. It is a O rings foam gasket made of 5 mm closed cell EPDM sponge rubber material. EPDM foam gaskets have superior resilience and shock absorption performance. Also they are excellent at heat insulation and chemical resistance. They are widely used in automotive industries, HVAC system, appliances and so on. EPDM foam rubber materials can also be offered in open cell structure depending on customer requirements.