Abstract: A filter apparatus includes a first housing having a wall defining a first cavity, a first end and a second end; a removable lid configured to be coupled to the first end of the first housing; a cap removably coupled to the removable lid such that a second cavity is defined between a portion of the cap and a portion of the removable lid; and a second housing having a wall defining a third cavity, a first end and a second end, where the second housing is disposed inside the first cavity, and where the first end is configured to be removably coupled to the removable lid independently from the first housing.