A fitting assembly comprising: a conduit having an end portion with a circumferential groove formed in an outer surface of the conduit end portion; and a push to connect fitting (500, 600, 900, 900', 900a, 900b, 900c, 900d, 900e, 900f, 900g, 900h) comprising: a first fitting component (584, 684, 984, 984', 984a, 984b, 984c, 984d, 984e, 984f, 984g, 984h) having an outboard end receiving the conduit end portion; a second fitting component (588, 688, 988, 988', 988a, 988b, 988c, 988d, 988e, 988f, 988g, 988h) joined to the first fitting component to define an interior cavity; a sealing arrangement (640, 940, 940', 940a, 940e) disposed in the interior cavity and sealing one of the first and second fitting components with an outer surface of a conduit end portion; and a conduit retaining arrangement disposed in the interior cavity, the conduit retaining arrangement including a gripping portion (530, 630, 930, 930', 930a, 930b, 930c, 930d, 930e, 930f, 930g, 930h) received in the circumferential groove, and a colleting portion (535, 635, 935, 935', 935a, 935b, 935c, 935d, 935e, 935f, 935g, 935h) engaging an interior tapered surface (518, 618, 918, 918c, 918e, 918f, 918g, 918h) of the second fitting component and the outer surface of the conduit end outboard of the circumferential groove, at least when the conduit is subjected to one of a pulling force and a fluid pressure force; wherein at least one of the gripping portion and the colleting portion is defined by a split ring. a conduit having an end portion with a circumferential groove formed in an outer surface of the conduit end portion; and a push to connect fitting (500, 600, 900, 900', 900a, 900b, 900c, 900d, 900e, 900f, 900g, 900h) comprising: a first fitting component (584, 684, 984, 984', 984a, 984b, 984c, 984d, 984e, 984f, 984g, 984h) having an outboard end receiving the conduit end portion; a second fitting component (588, 688, 988, 988', 988a, 988b, 988c, 988d, 988e, 988f, 988g, 988h) joined to the first fitting component to define an interior cavity; a sealing arrangement (640, 940, 940', 940a, 940e) disposed in the interior cavity and sealing one of the first and second fitting components with an outer surface of a conduit end portion; and a conduit retaining arrangement disposed in the interior cavity, the conduit retaining arrangement including a gripping portion (530, 630, 930, 930', 930a, 930b, 930c, 930d, 930e, 930f, 930g, 930h) received in the circumferential groove, and a colleting portion (535, 635, 935, 935', 935a, 935b, 935c, 935d, 935e, 935f, 935g, 935h) engaging an interior tapered surface (518, 618, 918, 918c, 918e, 918f, 918g, 918h) of the second fitting component and the outer surface of the conduit end outboard of the circumferential groove, at least when the conduit is subjected to one of a pulling force and a fluid pressure force; a first fitting component (584, 684, 984, 984', 984a, 984b, 984c, 984d, 984e, 984f, 984g, 984h) having an outboard end receiving the conduit end portion; a second fitting component (588, 688, 988, 988', 988a, 988b, 988c, 988d, 988e, 988f, 988g, 988h) joined to the first fitting component to define an interior cavity; a sealing arrangement (640, 940, 940', 940a, 940e) disposed in the interior cavity and sealing one of the first and second fitting components with an outer surface of a conduit end portion; and a conduit retaining arrangement disposed in the interior cavity, the conduit retaining arrangement including a gripping portion (530, 630, 930, 930', 930a, 930b, 930c, 930d, 930e, 930f, 930g, 930h) received in the circumferential groove, and a colleting portion (535, 635, 935, 935', 935a, 935b, 935c, 935d, 935e, 935f, 935g, 935h) engaging an interior tapered surface (518, 618, 918, 918c, 918e, 918f, 918g, 918h) of the second fitting component and the outer surface of the conduit end outboard of the circumferential groove, at least when the conduit is subjected to one of a pulling force and a fluid pressure force; wherein at least one of the gripping portion and the colleting portion is defined by a split ring.