A filtration system comprising: a filter manifold including: a sump; and an electronic switch assembly comprising a circuit actuable between open and closed positions, the switch assembly radially disposed with respect to the sump; and a filter cartridge including: a housing having a body and a top portion forming a fluid-tight seal with the body, the top portion including: ingress and egress fluid ports (276, 278); and an axially-extending protrusion integral with or connected to the housing top portion; a filter media disposed with the housing body; the filtration system characterized by: a correlated magnet operably coupled to the switch assembly and comprising a plurality of magnetic field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of the plurality of magnetic field emission sources; and a complementary or paired correlated magnet disposed within or connected to the housing top portion axially-extending protrusion and having a face oriented parallel to a longitudinal axis of the housing body; wherein the correlated magnets (240, 254) are interconnected via magnetic communication upon axial insertion of the filter cartridge into an alignment position within the sump, and upon movement of the filter cartridge into the alignment position, the correlated magnet of the filter manifold translates in a direction normal to a longitudinal axis of the sump as a result of the magnetic communication to contact an actuator to activate the switch. a filter manifold including: a sump; and an electronic switch assembly comprising a circuit actuable between open and closed positions, the switch assembly radially disposed with respect to the sump; and a sump; and an electronic switch assembly comprising a circuit actuable between open and closed positions, the switch assembly radially disposed with respect to the sump; and a filter cartridge including: a housing having a body and a top portion forming a fluid-tight seal with the body, the top portion including: ingress and egress fluid ports (276, 278); and an axially-extending protrusion integral with or connected to the housing top portion; a filter media disposed with the housing body; a housing having a body and a top portion forming a fluid-tight seal with the body, the top portion including: ingress and egress fluid ports (276, 278); and an axially-extending protrusion integral with or connected to the housing top portion; ingress and egress fluid ports (276, 278); and an axially-extending protrusion integral with or connected to the housing top portion; a filter media disposed with the housing body; the filtration system characterized by: a correlated magnet operably coupled to the switch assembly and comprising a plurality of magnetic field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of the plurality of magnetic field emission sources; and a complementary or paired correlated magnet disposed within or connected to the housing top portion axially-extending protrusion and having a face oriented parallel to a longitudinal axis of the housing body; wherein the correlated magnets (240, 254) are interconnected via magnetic communication upon axial insertion of the filter cartridge into an alignment position within the sump, and upon movement of the filter cartridge into the alignment position, the correlated magnet of the filter manifold translates in a direction normal to a longitudinal axis of the sump as a result of the magnetic communication to contact an actuator to activate the switch. a correlated magnet operably coupled to the switch assembly and comprising a plurality of magnetic field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of the plurality of magnetic field emission sources; and a complementary or paired correlated magnet disposed within or connected to the housing top portion axially-extending protrusion and having a face oriented parallel to a longitudinal axis of the housing body; wherein the correlated magnets (240, 254) are interconnected via magnetic communication upon axial insertion of the filter cartridge into an alignment position within the sump, and upon movement of the filter cartridge into the alignment position, the correlated magnet of the filter manifold translates in a direction normal to a longitudinal axis of the sump as a result of the magnetic communication to contact an actuator to activate the switch.