Purifier cassette

1. A purifier cassette with a rectangular profile, the cassette comprising:

a purifier body that comprises a set of media cavity sidewalls at least partially defining a media cavity, the set of media cavity sidewalls comprising a first sidewall, a second sidewall, a third sidewall and a fourth sidewall, the first sidewall opposite the second sidewall and the third sidewall opposite the fourth sidewall;

one or more tension members coupled to the first sidewall and the second sidewall of the media cavity, the one or more tension members at least partially defining one or more media holding areas, the one or more tension members run parallel to the third sidewall and fourth sidewall and divides the media cavity into a plurality of parallel lanes;

a first purifier port fluidly connected to the media cavity and a second purifier port fluidly connected to the media cavity;

a purifier element disposed in each of the one or more holding areas, the purifier element comprises a rectangular pleat pack disposed in each of the plurality of lanes, wherein each rectangular pleat pack is arranged with a first set of pleat tips facing an upstream portion of the media cavity and providing a generally planar rectangular entrance interface and a second set of pleat tips facing a downstream portion of the media cavity and providing a generally planar rectangular exit;

a first side cover providing the first sidewall and defining a first set of flow channels disposed along the first sidewall, the first set of flow channels connected to the first purifier port; a second side cover providing the second sidewall and defining a second set of flow channels disposed along the second sidewall the second set of flow channels on an opposite side of the plurality of parallel lanes from the first set of flow channels;

the first side cover comprises a first set of spaced ribs extending inward from the first sidewall; the second side cover comprises a second set of spaced ribs extending inward from the second sidewall; the first set of flow channels comprises a first series of rounded channels open on a first side cover inner side facing the plurality of parallel lanes, the first series of rounded channels at least partially defined by the first set of spaced ribs; and the second set of flow channels comprises a second series of rounded channels open on a second side cover inner side facing the plurality of parallel lanes, the second series of rounded channels at least partially defined by the second set of spaced ribs.

2. The purifier cassette of claim 1 , wherein the first set of flow channels comprises a plurality of flow channels per lane and the second set of flow channels comprises a plurality of flow channels per lane.

3. The purifier cassette of claim 1 , further comprising a main shell, the main shell further comprising a base having openings to allow fluid to flow into or out of the plurality of lanes; a set of outer sidewalls providing the third sidewall and the fourth sidewall; and the one or more tension members.

4. The purifier cassette of claim 3 , wherein the first side cover and second side cover are coupled to the outer sidewalls and the one or more tension members on opposite sides of the main shell.

5. The purifier cassette of claim 4 , further comprising a lane cover disposed over each lane between the first side cover and the purifier element disposed in that lane, each lane cover comprising openings to allow fluid to flow from the first set of flow channels into the lane.

6. The purifier cassette of claim 4 , further comprising a first end cap coupled to a first end of the purifier body and a second end cap coupled to a second end of the purifier body, the first end cap comprising the first filter port.

7. The purifier cassette of claim 6 , wherein the second end cap comprises the second purifier port.

8. The purifier cassette of claim 6 , wherein the purifier element comprises a first end proximate to the first end cap and a second end proximate to the second end cap, wherein the first end and second end of the purifier element are potted.

9. The purifier cassette of claim 1 , wherein fluid flows through the lanes in parallel.

10. The purifier cassette of claim 6 , wherein the first end cap comprises a guide slot to receive a guide of a manifold.

11. A method of assembling a purifier cassette having a media cavity, the method comprising:

providing a main shell that comprises a set of outer sidewalls and one or more tension members, the outer sidewalls and one or more tension members at least partially defining one or more media holding areas;

placing a purifier element in each of the one or more media holding areas, the one or more media holding areas comprise a plurality of parallel lanes wherein the placing comprises placing a pleat pack in each of the plurality of lanes with each pleat pack arranged with a first set of pleat tips facing a first portion of the media cavity and providing a generally planer rectangular entrance interface and a second set of pleat tips facing a second portion of the media cavity and providing a generally planer rectangular exit interface;

coupling a lane cover to the main shell to cover the one or more media holding areas, wherein coupling the lane cover to the main shell comprises coupling a plurality of lane covers to the main shell such that each lane has a corresponding lane cover between the lane and a first side cover;

coupling the first side cover and a second side cover to opposite sides of the main shell, the first side cover comprises a first set of spaced ribs extending inward and defines a first series of rounded flow channels in fluid communication with a first port and open on a first side cover inner side facing the plurality of lanes; and the second side cover comprises a second set of spaced ribs extending inward and defines a second series of rounded flow channels in fluid communication with a second port and open on a second side cover inner side facing the main shell;

coupling a first end cap comprising the first port to the main shell at a first end of the media cavity such that the first port of the first end cap is in fluid communication with the first portion of the media cavity;

and coupling a second end cap comprising the second port to the main shell at a second end of the media cavity such that the second port is in fluid communication with a second portion of the media cavity that is on the opposite side of the main shell from the first portion of the media cavity.

12. The method of claim 11 , wherein the main shell comprises a grated base.