The present invention provides a filter that can minimize the amount of residual liquid within the housing or container with a simplified construction. The article includes a cylinder portion having a cylindrical internal space with both ends open, a cylindrically formed pleated filter 5 inserted in the internal space of the cylinder portion 3 in contact with the inner wall of the cylinder portion 3 and having upper and lower edges liquid-tightly sealed. A perforate inner core 7 supports the inner surface of the pleated filter 5, lower and upper end caps 9, 11 are liquid-tightly bonded to the respective ends of the cylinder portion 3. A liquid distribution passage 21 communicates with gaps between the pleats of the pleated filter 5 from the lower portion of the cylinder portion 3. A liquid feed inlet 15 communicates with the liquid distribution passage 21 formed between the periphery of the pleated filter and a tapered inner wall surface 8 of the cylinder portion 3. A filtrate liquid withdrawal passage 25 communicates with an internal passage 23 of the perforate core 7, and a filtrate outlet 27 communicates with the withdrawal passage.