A rotatable hose coupling is provided for use with a pool cleaner, particularly of the type powered by a suction or vacuum source via a flexible vacuum hose or the like connected to the suction side of conventional pool water filtration equipment, wherein the rotatable hose coupling is mounted in-line...http://www.google.com/patents/US6279961?utm_source=gb-gplus-sharePatent US6279961 - Rotatable hose coupling
