Abstract: A water filter is provided. The water filter includes a filtration material and a filter housing spaced for accommodating at least a portion of the filtration material therein. The water filter also includes a housing cap coupled to an upper end of the filter housing for enclosing the filtration material within the water filter. The housing cap includes an upper portion, a lower portion, and a channel formed through the upper portion and the lower portion. The water filter also includes an interface adapter accommodated in the channel, wherein the interface adapter includes a side wall vertically extending from an upper surface of the interface adapter and partially around a perimeter of the upper surface, and a projection vertically extending from the upper surface, wherein the projection is integrally formed with the upper surface and a portion of the side wall.

Abstract: A filter assembly includes an end cover configured to connect with the water dispenser, and a filter housing assembled with the end cover and comprising a cavity configured to receive a filtering material. The end cover includes a body portion and a mounting portion protruding from the body portion. The mounting portion is configured to releasably attach to the water dispenser and has an oval or oval-like cross-section in a horizontal plane, and both ends of the oval or oval-like cross-section are inwardly recessed. Also described is filter assembly including at least one seal having an oval or oval-like cross-section in a horizontal plane, wherein both ends of the oval or oval-like cross-section are inwardly recessed, and wherein the at least one seal is configured to create a water-tight seal between the mounting portion and the water dispenser. A water dispenser for use with the filter assemblies is also described.

Abstract: An exemplary filter cartridge has a housing enclosing a filter chamber and a filter element having a center channel, and a valve assembly having a coupling for engaging an adapter of a water filtration system, an inlet channel, a wastewater outlet valve, and a purified water outlet channel. The wastewater outlet valve has an outlet valve poppet that is biased to seal against an outlet valve housing by a biasing member and the purified water outlet channel extends through the outlet valve poppet. The purified water outlet channel is in fluid communication with an outlet tube that extends into the filter chamber through the center channel. The wastewater outlet valve is opened by one or more outer protrusions extending from the adapter.

Abstract: A water filter is provided. The water filter includes a filtration material and a filter housing spaced for accommodating at least a portion of the filtration material therein. The water filter also includes a housing cap coupled to an upper end of the filter housing for enclosing the filtration material within the water filter. The housing cap includes an upper portion, a lower portion, and a channel formed through the upper portion and the lower portion. The water filter also includes an interface adapter accommodated in the channel, wherein the interface adapter includes a side wall vertically extending from an upper surface of the interface adapter and partially around a perimeter of the upper surface, and a projection vertically extending from the upper surface, wherein the projection is integrally formed with the upper surface and a portion of the side wall.

Abstract: A feeding bowl assembly for pets is proposed, comprising a first bowl base and a second bowl base separated from each other, and the tops of the first bowl base and the second bowl base are respectively provided with a first opening and a second opening, the first opening and the second opening are respectively used to set up one bowl body for holding food, wherein a third opening is provided at the bottom of the second bowl base, through which third opening the first bowl base can be received within the second bowl holder.

Abstract: A pet water dispenser having a water tank assembly, a filter assembly, and a water pumping assembly. The water tank assembly include a tank body defining an interior space for water storage and a top cover detachably arranged on the tank body above the interior space. The top cover having an upper surface defining a drinking tray with a first water return port. The filter assembly is detachably installed in the interior space and located below the first water return port. The water pumping assembly is detachably connected on a side of the tank body and configured to circulate water from the interior space into the drinking tray where the water returns back to the interior space through the water return port and filter assembly.

Abstract: A filter structure comprises a filtering member, a housing, and an upper supporter. The housing comprises a housing body comprising an opening portion and a housing cap coupled to the opening portion of the housing body. The upper supporter is coupled to the filtering member and disposed on an inner surface of the housing cap. The upper supporter comprises a supporter extending portion extending from the upper supporter portion, the supporter extending portion comprises a filter inlet flow path, a projection portion formed on an inner surface of the filter inlet flow path, and a filter outlet flow path separated from the first filter inlet flow path in the supporter extending portion.

Abstract: A water filter cartridge is provided. The water filter cartridge includes a filter housing enclosing a filtration material therein. A port shield is connected at one end of the filter housing and disposed between the filter housing and a connector part adapted for securing the water filter cartridge to a refrigerator filter part. The port shield is provided for at least partially covering a water inlet port and a water outlet port extending at least between the connector part through the port shield and at least partially through the filter housing. The port shield at least partially encloses the water inlet and/or water outlet port therebetween and also separates the filtration material and unfiltered water within the filter housing from the portions of the water inlet and outlet port within the port shield.

Abstract: A car washing system comprises a filtering unit, a pure water pipeline, a waste water pipeline, a washing pipeline, an optional first branch line, and a second branch line. The filtering unit comprises an RO filter membrane, a filtering pipeline and a booster pump. One end of the filtering pipeline is connected to the inlet of the RO filter membrane. The booster pump is set in the filtering pipeline. The pure water pipeline is connected between a pure water outlet of the RO filter membrane and one end of the washing pipeline. The joint of the pure water pipeline and the washing pipeline is provided with a high-pressure pump. One end of the waste water pipeline is connected with waste water outlet of the RO filtering membrane, and the other end is a discharge end. The second branch line is connected between the waste water pipeline and the washing pipeline.

Abstract: A water filter is provided. The water filter includes a filtration material and a filter housing spaced for accommodating at least a portion of the filtration material therein. The water filter also includes a housing cap coupled to an upper end of the filter housing for enclosing the filtration material within the water filter. The housing cap includes an upper portion, a lower portion, and a channel formed through the upper portion and the lower portion. The water filter also includes an interface adapter accommodated in the channel, wherein the interface adapter includes a side wall vertically extending from an upper surface of the interface adapter and partially around a perimeter of the upper surface, and a projection vertically extending from the upper surface, wherein the projection is integrally formed with the upper surface and a portion of the side wall.