A push-to-connect joint assembly, comprising: a monolithically formed fitting having an interior wall and an exterior wall, wherein the interior wall defines a cavity extending axially through the fitting and includes a first interior wall portion comprising a plurality of recessed axially spaced apart compartments defining a sealing ring compartment, a fastening ring support compartment and a retaining ring compartment; a first sealing ring positioned within the sealing ring compartment; a sealing ring support member having an axially inner wall and an axially outer wall, wherein the sealing ring support member is positioned at least partially within the sealing ring compartment and at least partially within the fastening ring support compartment, wherein the sealing ring support member axially inner wall is adapted to be in mating contact with the first sealing ring; a fastening ring having a base portion, wherein the base portion has a front wall, a rear wall and a radially outer edge, wherein the base portion is positioned within the fastening ring support compartment and wherein the front wall is in mating contact with the axially outer wall of the sealing ring support member; a fastening ring support member having a first axial wall, a second axial wall and a radially outer wall, wherein the fastening ring support member is positioned within the fastening ring support compartment and wherein the first axial wall of the fastening ring support member is in mating contact with the rear wall of the fastening ring; a shield member having first and second faces, an inner edge surface and an outer edge surface, wherein the shield member is positioned within the retaining ring compartment and wherein the first face is in mating contact with the second axial wall of the fastening ring support member; a retaining ring member having an axially internal wall, an axially external wall, a radially internal wall, and a radially external wall, wherein the retaining ring member is positioned within the retaining ring compartment and wherein the axially internal wall of the retaining ring member is in mating contact with the second face of the shield member; and a release pusher member slidably engaged with the retaining ring member radially internal wall. a monolithically formed fitting having an interior wall and an exterior wall, wherein the interior wall defines a cavity extending axially through the fitting and includes a first interior wall portion comprising a plurality of recessed axially spaced apart compartments defining a sealing ring compartment, a fastening ring support compartment and a retaining ring compartment; a first sealing ring positioned within the sealing ring compartment; a sealing ring support member having an axially inner wall and an axially outer wall, wherein the sealing ring support member is positioned at least partially within the sealing ring compartment and at least partially within the fastening ring support compartment, wherein the sealing ring support member axially inner wall is adapted to be in mating contact with the first sealing ring; a fastening ring having a base portion, wherein the base portion has a front wall, a rear wall and a radially outer edge, wherein the base portion is positioned within the fastening ring support compartment and wherein the front wall is in mating contact with the axially outer wall of the sealing ring support member; a fastening ring support member having a first axial wall, a second axial wall and a radially outer wall, wherein the fastening ring support member is positioned within the fastening ring support compartment and wherein the first axial wall of the fastening ring support member is in mating contact with the rear wall of the fastening ring; a shield member having first and second faces, an inner edge surface and an outer edge surface, wherein the shield member is positioned within the retaining ring compartment and wherein the first face is in mating contact with the second axial wall of the fastening ring support member; a retaining ring member having an axially internal wall, an axially external wall, a radially internal wall, and a radially external wall, wherein the retaining ring member is positioned within the retaining ring compartment and wherein the axially internal wall of the retaining ring member is in mating contact with the second face of the shield member; and a release pusher member slidably engaged with the retaining ring member radially internal wall.