A filter cartridge (46, 52, 435) for releasable connection with a filter head (42, 432); the filter cartridge (46, 52, 435) comprising: (a) a first end cap (56, 356) defining a first open aperture (58, 358); (i) the first end cap (56, 356) holding a first end cap seal member (86, 386); (ii) the first end cap (56, 356) defining an axially extending neck (80, 380) having an outer radial surface (82, 382) and an inner radial surface (84, 384); the first end cap seal member (86, 386) being held by the axially extending neck (80, 380) on the outer radial surface (82, 382); (b) a key ring (110, 410) separate from the first end cap within and against the inner radial surface (84, 384) of the neck (80, 380) and circumscribing the first open aperture (58, 358); (c) at least first and second protrusions (114, 115, 402, 403) extending from the key ring (110, 410) and into the first open aperture (58, 358); (i) the first protrusion (114, 402) being spaced from the second protrusion (115, 403) in a vertical direction along the key ring (110, 410); (ii) the first protrusion (114, 402) being circumferentially spaced from the second protrusion (115, 403) along the key ring (110, 410); (d) a tubular construction of filter media defining an open filter interior and having first and second opposite ends (61, 62); the first end being secured to the first end cap (56, 356); (i) the first open aperture (58, 358) being in communication with the open filter interior; and (e) a second end cap secured to the second end of the filter media; wherein when the filter cartridge (46, 52, 435) is connected to the filter head (42, 432), the first and second protrusions (114, 115, 402, 403) engage a lockout assembly in the filter head (42, 432) permitting the cartridge (46, 52, 435) to connect to the filter head (42, 432); further comprising: (f) friction-inducing structure between the key ring (110, 410) and the first end cap (56, 356) including at least one of a friction ring and a bump arrangement; the friction ring being between an outer radial surface of the key ring (110, 410) and the inner radial surface (84, 384) of the neck (80, 380); (i) the friction inducing structure holding the key ring (110, 410) fixed to the first end cap (56, 356), and under rotational force, permitting the key ring (110, 410) to move rotationally about a longitudinal axis relative to the first end cap (56, 356). (a) a first end cap (56, 356) defining a first open aperture (58, 358); (i) the first end cap (56, 356) holding a first end cap seal member (86, 386); (ii) the first end cap (56, 356) defining an axially extending neck (80, 380) having an outer radial surface (82, 382) and an inner radial surface (84, 384); the first end cap seal member (86, 386) being held by the axially extending neck (80, 380) on the outer radial surface (82, 382); (i) the first end cap (56, 356) holding a first end cap seal member (86, 386); (ii) the first end cap (56, 356) defining an axially extending neck (80, 380) having an outer radial surface (82, 382) and an inner radial surface (84, 384); the first end cap seal member (86, 386) being held by the axially extending neck (80, 380) on the outer radial surface (82, 382); the first end cap seal member (86, 386) being held by the axially extending neck (80, 380) on the outer radial surface (82, 382); (b) a key ring (110, 410) separate from the first end cap within and against the inner radial surface (84, 384) of the neck (80, 380) and circumscribing the first open aperture (58, 358); (c) at least first and second protrusions (114, 115, 402, 403) extending from the key ring (110, 410) and into the first open aperture (58, 358); (i) the first protrusion (114, 402) being spaced from the second protrusion (115, 403) in a vertical direction along the key ring (110, 410); (ii) the first protrusion (114, 402) being circumferentially spaced from the second protrusion (115, 403) along the key ring (110, 410); (i) the first protrusion (114, 402) being spaced from the second protrusion (115, 403) in a vertical direction along the key ring (110, 410); (ii) the first protrusion (114, 402) being circumferentially spaced from the second protrusion (115, 403) along the key ring (110, 410); (d) a tubular construction of filter media defining an open filter interior and having first and second opposite ends (61, 62); the first end being secured to the first end cap (56, 356); (i) the first open aperture (58, 358) being in communication with the open filter interior; and (i) the first open aperture (58, 358) being in communication with the open filter interior; and (e) a second end cap secured to the second end of the filter media; (f) friction-inducing structure between the key ring (110, 410) and the first end cap (56, 356) including at least one of a friction ring and a bump arrangement; the friction ring being between an outer radial surface of the key ring (110, 410) and the inner radial surface (84, 384) of the neck (80, 380); (i) the friction inducing structure holding the key ring (110, 410) fixed to the first end cap (56, 356), and under rotational force, permitting the key ring (110, 410) to move rotationally about a longitudinal axis relative to the first end cap (56, 356). (i) the friction inducing structure holding the key ring (110, 410) fixed to the first end cap (56, 356), and under rotational force, permitting the key ring (110, 410) to move rotationally about a longitudinal axis relative to the first end cap (56, 356).