Abstract: Adapter suitable to connect a device for allowing compressed gas to pass through the adapter into an inflatable member, where the adapter comprises: —Means for attaching the adapter to a source of compressed gas, said means having a gas passage, and where the means for attaching the adapter is in gas communication with —A main housing, where the housing has an inner open-ended cavity, suitable to receive a valve body of the inflatable member, and where inside said open-ended cavity, a gas outlet is arranged, and further where means for releasably holding the valve body of the inflatable member is provided and further —A resilient gasket is provided surrounding the gas outlet, where in one end of the gasket towards the opening of the open-ended cavity is provided an engagement surface and in a lower section of the gasket opposite the engagement surface is provided a cavity, where the cavity is limited by an inner lip and an outer lip, where said inner lip is in sealing and sliding engagement with the gas outle