An endcap bypass plug is disclosed. The endcap bypass plug includes a body and a plurality of leg members. The body includes an upper surface, a lower surface and an outer side surface joining the upper surface to the lower surface. A central axis extends through an axial center of the body. The plurality of leg members are connected to and extends away from the upper surface of the body. Adjacent leg members of the plurality of leg members are spaced apart by a distance to thereby form a plurality of radial passages defining a plurality of radial fluid-flow paths there between. Each leg member of the plurality of leg members includes: a head portion having an upper surface. The head portion includes a nose portion extending radially outwardly from the head portion. The nose portion includes a ramp surface and a lower surface. The ramp surface of the nose portion is connected to the upper surface of the head portion to define an upper edge. The ramp surface of the nose portion is connected to the lower surface of the nose portion to define a lower edge. An endcap assembly is also disclosed. A filter assembly is also disclosed. A method is also disclosed.