Abstract: An improved swivel coupling is provided for use with a pool cleaner, particularly for use in connecting a pool cleaner of the type powered by a suction or vacuum source to a flexible vacuum hose which is connected in turn to the suction side of conventional pool water filtration equipment. The swivel coupling comprises outer and inner part-spherical ball segments adapted for respective connection to the vacuum hose and to a water flow port on the pool cleaner, wherein the outer ball segment defines a socket for rotationally receiving and supporting the inner ball segment in a manner to accommodate substantial angular and rotational swivel displacement therebetween. A plurality of generally axially extending ribs are formed within the socket for rotationally supporting the inner ball segment with minimal contact area, and to define therebetween a plurality of axially elongated recessed channels.