An adjustable valve for use on irrigation pipes to control or to shut off the water flow. This device is provided with a flexible grommet that is inserted into a hole in the irrigation pipe and supports the valve member on the pipe. The grommet is provided with a tapered inwardly projecting lip that extends a short distance into the irrigation pipe and frictionally engages the body of the valve member. This grommet lip is stretched slightly by a tapered flange that is provided on the valve member when the valve member is inserted into the grommet. This lip contracts to grip the body of the valve member after the tapered flange of the valve member is pressed through the grommet. The valve member may be adjusted in the grommet to control the water flow out of the pipe through openings in the body of the valve member. When it is desired to close the valve, the valve member is moved outward until the grommet lip and tapered flange engage each other. These parts also limit the outward withdrawal of the valve member from the grommet.
