A hose coupling wherein a tubular connector has a first portion with an internal annular wall and an internal annular protuberance, and a cylindrical second portion. The protuberance is located between the wall and the second portion, and the first portion has axially extending elastic arms with pallets which can engage an external rib of a pipe when the terminal portion of such pipe is introduced into the first portion. A thin-walled metallic sleeve has a larger-diameter first section with a free end which is receivable in an annular socket of the wall after having passed within and beyond the protuberance upon entering through the open end of the second portion of the connector. At such time, the first section deforms and/or is deformed by the protuberance. The terminal portion of a hose is thereupon introduced between a smaller-diameter second section of the sleeve and the second portion of the connector before the second section is deformed from within to clamp the hose against the internal surface of the second portion of the connector. A sealing ring is confined and deformed between the internal surface of the first section of the sleeve and the peripheral surface of terminal portion of the pipe when such terminal portion is inserted into the connector.