An improved hose clasp for supporting a filter bag in a generally upright orientation on a pool cleaner as disclosed, for example, in U.S. Pat. Nos. 5,863,425; 4,558,479; and 3,822,754. The hose clasp includes a generally cylindrical split collar having separable free ends including a pair of radially outwardly extending clasp arms. The clasp arms are springably separable to permit placement of the split collar onto a supply hose or the like coupled to the pool cleaner. The clasp arms are notched to accommodate movement to an interlocked cross-over position, with a boss on one of the clasp arms protruding through a lock port in the other clasp arm. A leash member such as a ported tab carried by the filter bag is fitted over the boss in a position interposed between the interlocked clasp arms to support the filter bag relative to the supply hose.