Shark DuoClean With Self-Cleaning Brushroll Powered Lift-Away Upright Vacuum For $259.99 From Amazon This was selling for $375 yesterday and is now the lowest price ever from Amazon. Shark DuoClean technology is a dual-brushroll system designed to deep-clean carpets and directly engage floors. With Powered Lift-Away, the motorized brushroll keeps spinning when you detach the […]