A filter cartridge for being removably inserted into a space of filter housing with a housing socket and a housing cover with a sealing surface facing inwards, wherein the filter cartridge comprises at least: - a filter element forming a fluid channel with a longitudinal axis, a front end and a rear end; - a connector element being attached to the front end, wherein the connector element has at least o a forward-facing side facing away from the front end into a forward direction being parallel within an angle α l to the longitudinal axis, wherein α l ∈ {30°, 20°, 15°, 10°, 5°, 1.5°, 1°, 0.5°, 0°} and a rearward-facing side facing towards the filter element in a rearward direction, o a peripheral surface with at least a first ring surface and a second ring surface, wherein the first ring surface is located closer to the forward-facing side or closer to the rearward-facing side than the second ring surface; and - a first fluid port being in fluid communication with a first fluid opening, wherein the first fluid opening is in a radially outward facing surface of the filter cartridge; - a second fluid port, wherein the second fluid port is in fluid communication with the fluid channel; characterized in, that the first ring surface and the second ring surface are plain bearing surfaces and in that a gasket is movably supported in a first axial position on the first ring surface, enabling a translation of the gasket in a first direction to a second axial position onto the second ring surface, and in that (i) the radius of the first ring surface is smaller than the radius of the second ring surface and/or (ii) the gasket has a first portion with a first connector facing surface defining a first inner radius and a second portion with a second connector facing surface defining a second inner radius, wherein if the gasket is in its first axial position o the first connector facing surface is located on the first ring surface and is closer to the second ring surface than the second connector facing surface, and o the first inner radius is greater than the second inner radius, and wherein the inner radius of the second portion increases if the gasket is axially shifted from its first axial position into its second axial position. - a filter element forming a fluid channel with a longitudinal axis, a front end and a rear end; - a connector element being attached to the front end, wherein the connector element has at least o a forward-facing side facing away from the front end into a forward direction being parallel within an angle α l to the longitudinal axis, wherein α l ∈ {30°, 20°, 15°, 10°, 5°, 1.5°, 1°, 0.5°, 0°} and a rearward-facing side facing towards the filter element in a rearward direction, o a peripheral surface with at least a first ring surface and a second ring surface, wherein the first ring surface is located closer to the forward-facing side or closer to the rearward-facing side than the second ring surface; and o a forward-facing side facing away from the front end into a forward direction being parallel within an angle α l to the longitudinal axis, wherein α l ∈ {30°, 20°, 15°, 10°, 5°, 1.5°, 1°, 0.5°, 0°} and a rearward-facing side facing towards the filter element in a rearward direction, o a peripheral surface with at least a first ring surface and a second ring surface, wherein the first ring surface is located closer to the forward-facing side or closer to the rearward-facing side than the second ring surface; and - a first fluid port being in fluid communication with a first fluid opening, wherein the first fluid opening is in a radially outward facing surface of the filter cartridge; - a second fluid port, wherein the second fluid port is in fluid communication with the fluid channel; (i) the radius of the first ring surface is smaller than the radius of the second ring surface and/or (ii) the gasket has a first portion with a first connector facing surface defining a first inner radius and a second portion with a second connector facing surface defining a second inner radius, wherein if the gasket is in its first axial position o the first connector facing surface is located on the first ring surface and is closer to the second ring surface than the second connector facing surface, and o the first inner radius is greater than the second inner radius, and wherein the inner radius of the second portion increases if the gasket is axially shifted from its first axial position into its second axial position. o the first connector facing surface is located on the first ring surface and is closer to the second ring surface than the second connector facing surface, and o the first inner radius is greater than the second inner radius, and wherein the inner radius of the second portion increases if the gasket is axially shifted from its first axial position into its second axial position.