With multi-layer compound structure, DuraSEP filter basket is suitable for filter range from 30 to 1,000um. By advanced vacuum high-temperature compound technology, protection layer, filter layer, flow-lead layer and reinforced layer are optimized and compounded according to filter accuracy, it has prominent merits of durability, easy-to-clean and high accuracy. DuraSEP filter baske can make cleaning easy to lower operation, maintenance and replacement costs, and foremost it has reliable and stable filter performance and can improve quality of final products, and provide reliable protection to key equipment of lower stream.