TSBH series top entry bag filter housing adopts side-in and bottom-out design. The filter bag is supported by a metal mesh basket inside. The liquid enters from the inlet and flows out after being filtered by the filter bag. The housing body is made of 304 stainless steel with sandblasted surface, which is not easy to rust, and the top cover and the head and neck are made of one-piece molded parts, which are not easy to deformation and side leakage, and have good pressure resistance. It is suitable for replacing the traditional core type filtering products in many fields with the outstanding advantages of large flux, convenient operation and economical consumables, especially suitable for the filtration of viscous liquid and occasions where no leakage is required, and can meet the requirements of a variety of high-precision filtration conditions.