Filter device

A method of assembling a filter assembly, comprising:

• providing a filter housing cover having one or more fingers that extend from an inner surface of the filter housing cover;
• inserting a filter into the filter housing cover, the filter including an end cap with a top surface, the end cap including a circumferential collar extending from the top surface, the circumferential collar having a radial surface that rotationally engages radially with the one or more fingers that extend from the inner surface of the filter housing cover to attach the end cap onto the filter housing cover;
• and
• inserting the filter into a filter housing such that a pin at a bottom of the filter extends into a channel of the filter housing.

A filter, comprising:

• a filter housing including an end cap having an end cap top surface, the end cap including a circumferential collar extending from the end cap top surface, the circumferential collar having a collar top surface that engages radially with one or more fingers that extend from an inner surface of a filter housing cover;
• a filter base including a cavity;
• a first water separator positioned within the cavity of the filter base, the first water separator including a first hydrophobic diaphragm;
• a filter element positioned within the filter housing between the end cap and the filter base;
• and
• a pin extending from the filter housing;
• wherein the end cap includes an axial extension, the axial extension including i) a vent hole disposed in an upper surface of the axial extension and ii) a seal that seals against a surface of a center stack such that an air gap is formed above the end cap when the filter is positioned within the filter housing and the air gap is in fluid communication with a chamber within the center stack.