Abstract: A liquid processing apparatus comprised of a housing comprising a bottom wall, a side wall, and a central wall dividing a volume enclosed by the bottom wall and side wall into a treatment chamber and a discharge chamber; and a cartridge disposed in the treatment chamber. The cartridge may be comprised of a base wall and a lateral wall forming a media chamber, and a plurality of passageways through at least one of the base wall and side wall rendering the media chamber in communication with the treatment chamber. A treatment medium is contained in the media chamber. The cartridge may be comprised of a plurality of divider walls partitioning the media chamber into media compartments. The housing may be further comprised of a plurality of locating walls extending vertically upward from the bottom wall of the housing and between the divider walls of the cartridge.

Abstract: A pump cartridge comprising an external housing including a lateral wall, a first fin extending from a first side of the lateral wall, and a second fin extending from a second side of the lateral wall. The second side of the lateral wall may be opposite the first side of the lateral wall, such that the fins are on opposite sides of the lateral wall. The pump cartridge may be part of a pumping system further comprised of a chassis comprising a pump basin including an interior side wall, a first tab extending inwardly from the interior side wall, and a second tab extending inwardly from the interior side wall and opposed to the first tab. The first fin of the cartridge is reversibly engageable with the first tab of the chassis and the second fin of the cartridge is reversibly engageable with the second tab of the chassis.

Abstract: A liquid processing apparatus comprised of a housing comprising a bottom wall, a side wall, and a central wall dividing a volume enclosed by the bottom wall and side wall into a treatment chamber and a discharge chamber; and a cartridge disposed in the treatment chamber. The cartridge may be comprised of a base wall and a lateral wall forming a media chamber, and a plurality of passageways through at least one of the base wall and side wall rendering the media chamber in communication with the treatment chamber. A treatment medium is contained in the media chamber. The cartridge may be comprised of a plurality of divider walls partitioning the media chamber into media compartments. The housing may be further comprised of a plurality of locating walls extending vertically upward from the bottom wall of the housing and between the divider walls of the cartridge.

Abstract: A pump cartridge comprising an external housing including a lateral wall, a first fin extending from a first side of the lateral wall, and a second fin extending from a second side of the lateral wall. The second side of the lateral wall may be opposite the first side of the lateral wall, such that the fins are on opposite sides of the lateral wall. The pump cartridge may be part of a pumping system further comprised of a chassis comprising a pump basin including an interior side wall, a first tab extending inwardly from the interior side wall, and a second tab extending inwardly from the interior side wall and opposed to the first tab. The first fin of the cartridge is reversibly engageable with the first tab of the chassis and the second fin of the cartridge is reversibly engageable with the second tab of the chassis.