A.W. Perkins Co #N/A RoVac Super Scrub Power Sweeping Whip has been filling the supply and accessory needs of over 8, 000 sweeps hearth retailers masons and contractors for over 25 years. has the privilege of serving over 80% of the professionals in America.Founded by Robert Daniels Sooty Bob in 1978 has grown from a one-man operation to a national network of six warehouses and a manufacturing plant. From its headquarters in Fairfield Iowa plays a major role in providing for the industry. 11 strands of.155 diameter shark tooth whip line. Passes through dampers easily then expands out to scrub the flue removing soot and flaky creosote. Guide ball to negotiate offsets.