Filter cartridges and methods

A filter cartridge for use with a manifold of an appliance, the filter cartridge comprising:

• a filter body having a top;
• and
• a filter cap coupled to the top of the filter body, the filter cap having a first top surface, a raised portion coupled to the first top surface, the raised portion having a second top surface, and a neck coupled to the second top surface of the raised portion;
• the raised portion having a cam element, the cam element including a first cam portion, a middle cam portion, and an end cam portion;
• the middle cam portion positioned substantially parallel to the raised portion;
• the first cam portion extending at a first angle between the middle cam portion and at least toward the second top surface;
• and
• the end cam portion extending at a second angle between the middle cam portion and at least toward the first top surface.

A filter cartridge for use with a manifold of an appliance, the filter cartridge comprising:

• a filter body having a top;
• a nut positioned around a perimeter of the top of the filter body, the nut being rotatable with respect to the filter body in order to selectively engage the manifold;
• and
• a filter cap coupled to the top of the filter body, the filter cap having a first top surface, a raised portion coupled to the first top surface, the raised portion having a second top surface, and a neck coupled to the second top surface of the raised portion, the raised portion having a tab, the tab positioned substantially parallel to the second top surface.

A filter cartridge for use with a manifold of an appliance, the filter cartridge comprising:

• a filter body having a top;
• a filter cap coupled to the top of the filter body, the filter cap having a top surface, a neck coupled to the top surface;
• and
• at least one spring coupled to at least one of the filter body and the filter cap to bias the filter cartridge away from the manifold.

A filter cartridge for use with a manifold of an appliance, the filter cartridge comprising:

• a filter body having a top;
• and
• a filter cap coupled to the top of the filter body, the filter cap having a first top surface,
• the filter cap having raised portion coupled to the first top surface;
• the filter cap having a recess surrounded by the raised portion, the recess including at least one seal.

A filter cartridge system for use with a manifold of an appliance, the filter cartridge system comprising:

• a filter having at least one seal;
• and
• an adapter removably coupled to the filter, the adapter including a filter end and a manifold end,
• the filter end including a filter neck being free of seals, and
• the manifold end having a manifold neck, the manifold neck having at least one annular wall and at least one stepped portion for a non-uniform diameter along a longitudinal length.

A filter cartridge for use with a manifold of an appliance, the filter cartridge comprising:

• a filter body having a top and a bottom, the filter body including a protrusion;
• a filter cap coupled to the top of the filter body;
• and
• a handle coupled to the bottom of the filter body, the handle including an annular wall positioned around a perimeter of the filter body, the annular wall including a slot that receives the protrusion, the handle moving away from the top of the filter body to extend the filter body and increase a total length of the filter cartridge.

A filter cartridge for use with a manifold of an appliance, the filter cartridge comprising:

• a filter body having a top and a bottom;
• a filter cap coupled to the top of the filter body;
• and
• a handle coupled to the bottom of the filter body, the handle including a T-bar handle assembly having a stem receiver, a stem, and an end portion, the stem and the end portion moving away from the top of the filter body to extend the filter body and increase a total length of the filter cartridge.