Patent attributes
A fuel filter includes a filter member formed in a bag shape by a filter material sheet; and a frame member disposed inside the filter member. The frame member includes a base frame spreading out inside the filter member, and a cantilever spring formed in the base frame. The base frame includes first frames extending in a long-side direction, and second frames connected to the first frames and extending in a short-side direction perpendicular to the long-side direction. The first frames include a bent portion which is bent between portions wherein adjacent second frames are connected. A base end portion of the cantilever spring is connected to a second frame, and an end portion of the cantilever spring is disposed between adjacent second frames.