A vascular access device adapter comprising: a substantially cylindrical housing body , the housing body having a proximal end, a distal end, an outer housing sidewall and an aperture defining an interior flow channel , a fitting integrally formed to the proximal end of the housing body projecting proximally from the housing body , fitting having a concentric lumen defining an interior flow path of the female adapter, an end cap , the end cap having a concentric proximal opening, a distal wall, an inner sidewall and a concentric aperture extending from the proximal opening to the distal wall, the aperture defining an end cap interior; the distal wall having a concentric hole extending therethrough; and characterized by further comprising: a substantially cylindrical self-healing puncturable septum having a proximal portion and a distal portion, the proximal portion having a smaller diameter than the diameter of the cylindrical distal portion; the transition from the proximal portion to the distal portion defining a ridge, wherein the flow channel and the concentric lumen define a greater flow channel, wherein the housing body is disposed within the end cap , the inner sidewall of the end cap and the outer housing sidewall of the housing body creating a fitment, wherein the puncturable septum is disposed within the concentric aperture of the end cap , the ridge abutting the distal end of the housing body , creating a seal. a substantially cylindrical housing body , the housing body having a proximal end, a distal end, an outer housing sidewall and an aperture defining an interior flow channel , a fitting integrally formed to the proximal end of the housing body projecting proximally from the housing body , fitting having a concentric lumen defining an interior flow path of the female adapter, an end cap , the end cap having a concentric proximal opening, a distal wall, an inner sidewall and a concentric aperture extending from the proximal opening to the distal wall, the aperture defining an end cap interior; the distal wall having a concentric hole extending therethrough; and characterized by further comprising: a substantially cylindrical self-healing puncturable septum having a proximal portion and a distal portion, the proximal portion having a smaller diameter than the diameter of the cylindrical distal portion; the transition from the proximal portion to the distal portion defining a ridge, wherein the flow channel and the concentric lumen define a greater flow channel, wherein the housing body is disposed within the end cap , the inner sidewall of the end cap and the outer housing sidewall of the housing body creating a fitment, wherein the puncturable septum is disposed within the concentric aperture of the end cap , the ridge abutting the distal end of the housing body , creating a seal. a substantially cylindrical self-healing puncturable septum having a proximal portion and a distal portion, the proximal portion having a smaller diameter than the diameter of the cylindrical distal portion; the transition from the proximal portion to the distal portion defining a ridge, wherein the flow channel and the concentric lumen define a greater flow channel, wherein the housing body is disposed within the end cap , the inner sidewall of the end cap and the outer housing sidewall of the housing body creating a fitment, wherein the puncturable septum is disposed within the concentric aperture of the end cap , the ridge abutting the distal end of the housing body , creating a seal. <EOS>