A filter cartridge includes an open-ended housing and filter element supported in the housing and defining an annular region between a periphery of the filter element and a side housing wall. A water collection region is between an end of the filter element and a lower-housing wall. The filter element includes pleated media surrounding an axially-extending central area, and pleats of different heights round the central area. An end plate is bonded to the filter element to prevent fluid flow through the pleats' upper ends. One passage is through a plate opening into the central area. Another passage is between the end plate and peripheral region. The filter element has freely-supported lower ends. A seal between the lower periphery of the filter element and the housing prevents fluid bypass of the filter element. Fluid passes through the pleats, and water coalesces on the media and drains into the collection region.

A filtration device is configured to be connected to an existing condensate drain line of a heating, cooling, and ventilation system. The filtration device is configured to collect metal and other debris as the condensate moves through the device and prevents the condensate drain line from getting a clog. When a clog is present or other issues affect a level of condensate to rise in the device and stop from draining properly, the device is configured to shut off the heating, cooling, and ventilation system. Alternatively, the device is configured to provide an alternate pipe for drainage.

An in situ system of filter rejuvenation has a fluid inlet on a first side of a reaction chamber, a fluid outlet disposed on a second side of the reaction chamber, a filtration chamber with a first wall comprising a ceramic glass material with a pass-band in the infrared spectrum. The filtration chamber is in fluid communication with the fluid inlet and the fluid outlet so that a fluid introduced into the inlet passes through the filtration chamber and exits through the fluid outlet. The system has at least one infrared heating element configured to transmit infrared energy within the pass-band of the ceramic glass material to heat the filter medium disposed within the filtration chamber to a temperature of at least 260° C., which can gasify contaminants without combustion.

A filter assembly comprises a housing defining an internal volume. A housing second end of the housing defines at least one female thread. A bowl is positioned at the housing second end The bowl comprises at least one bowl male thread structured to engage the at least one female thread of the housing so as to be coupled thereto.

A system for treating water for use in aquatics or recreational facilities is disclosed. The system includes a media filter vessel, a pressure sensor, and a monochromatic light source. A method of treating water for use in aquatics or recreational facilities is also disclosed. The method includes fluidly connecting a media filter vessel to a source of water for use in aquatics or recreational facilities, illuminating a media inside the media filter vessel, observing a monochromatic light source display a first indicator and observing a monochromatic light source display a second indicator. A method of retrofitting a media filter vessel is also disclosed. The method includes installing a pressure sensor on the media filter vessel, installing a monochromatic light source and operably connecting the monochromatic light source to a manual control and to the pressure sensor.

An apparatus facilitates multiple paths or circuits through an engine and remote housing for an oil filter. The apparatus includes a first oil filter chamber housing a first oil filter, a second oil filter chamber housing a second oil filter, a first output of the remote housing configured to provide a path from the first oil filter chamber housing to bearings of an engine, a second output of the remote housing configured to provide a path from the second oil filter chamber housing to a sump of the engine, and an input of the remote housing configured to provide a path from an oil pump of the engine to the first oil filter chamber housing.

A swimming pool backwash filtration device for filtering backwash includes a house. The house has an interior defining a space for a filter to be stored within. The house has an inlet surface and an outlet surface where the inlet surface has an inlet conduit. A y-valve comprises an intake conduit and a pair of exit conduits. The intake conduit is in fluid communication with a pump and a debris filter of a swimming pool. The pair of exit conduits includes a backwash exit conduit and a pool exit conduit. The pool exit conduit is in fluid communication with the inlet conduit of the house.

A filter device, having a filter housing (2) in which an exchangeable filter element (14) is accommodated, is characterized in that the filter element (14) has a securing device (58) that can be inserted axially into a receiving device (20) of the filter housing (2), in that, after a rotational motion has been performed, snap means (70) are used to snap the securing device (58) to the receiving device (20) in a snap position.

A filter device having a filter housing (1), in which a replaceable filter element (7) is accommodated and which has a cover part (2), wherein the element material (9) of the filter element (7) extends between two end caps (13, 14) of the latter, is characterized in that the filter housing (1), which is formed as an outlet pipe (3), extends between both end caps (13, 14) as well.

A filter device with a filter housing (2, 6), in which a replaceable filter element (4) is accommodated and which has a cover part (2), wherein the element material (30) is delimited at the end by at least one end cap (32), is characterized in that at least this one end cap (32) of the filter element (4) is placed on a fluid channel (58) and in that a device (84) for transverse force support for the filter element (4) is provided between this one end cap (32) and the fluid channel (58), wherein said device (84) for transverse force support supports the filter element (4) in relation to the fluid channel (58) engaging in the interior of the filter element (4) at least partially at the end.