A valve assembly comprising: a valve main body ; a valve housed in the valve main body ; and a connector comprising a nut , a sealing gasket , and a connector end ; wherein the connector end is integrally formed as part of the valve main body , wherein the connector is configured to connect the valve main body to a corrugated hose that has an end disposed within the connector end , and wherein the connector is configured such that the sealing gasket radially contracts so as to grip the corrugated hose when the nut is tightened over the connector end ; wherein the valve assembly further comprises a resilient gasket disposed inside the connector end , wherein the resilient gasket is compressed between the corrugated hose and an inner wall of the connector end when the nut is tightened over the connector end ; characterised in that the valve is a ball valve; the connector end comprises a lip configured to support a seat ring of the ball valve, and wherein, when the nut is tightened over the connector end , the sealing gasket is configured to urge the end of the corrugated hose axially towards the lip of the connector end , wherein the lip is configured to prevent the end of the corrugated hose from being inserted or urged too far in to the valve assembly. a valve main body ; a valve housed in the valve main body ; and a connector comprising a nut , a sealing gasket , and a connector end ; wherein the connector end is integrally formed as part of the valve main body , wherein the connector is configured to connect the valve main body to a corrugated hose that has an end disposed within the connector end , and wherein the connector is configured such that the sealing gasket radially contracts so as to grip the corrugated hose when the nut is tightened over the connector end ; wherein the valve assembly further comprises a resilient gasket disposed inside the connector end , wherein the resilient gasket is compressed between the corrugated hose and an inner wall of the connector end when the nut is tightened over the connector end ; characterised in that the valve is a ball valve; the connector end comprises a lip configured to support a seat ring of the ball valve, and wherein, when the nut is tightened over the connector end , the sealing gasket is configured to urge the end of the corrugated hose axially towards the lip of the connector end , wherein the lip is configured to prevent the end of the corrugated hose from being inserted or urged too far in to the valve assembly. wherein the connector end is integrally formed as part of the valve main body , wherein the connector is configured to connect the valve main body to a corrugated hose that has an end disposed within the connector end , and wherein the connector is configured such that the sealing gasket radially contracts so as to grip the corrugated hose when the nut is tightened over the connector end ; wherein the valve assembly further comprises a resilient gasket disposed inside the connector end , wherein the resilient gasket is compressed between the corrugated hose and an inner wall of the connector end when the nut is tightened over the connector end ; characterised in that the valve is a ball valve; the connector end comprises a lip configured to support a seat ring of the ball valve, and wherein, when the nut is tightened over the connector end , the sealing gasket is configured to urge the end of the corrugated hose axially towards the lip of the connector end , wherein the lip is configured to prevent the end of the corrugated hose from being inserted or urged too far in to the valve assembly. <EOS>