According to the Trailspace review, the real weight of the filter comes in around 11oz. If the filter is susceptible to freezing and damage from dropping, and if it does, in fact, weigh 11 oz., and if it costs $100, then the only advantage that it has over the Pur Hiker is that it pumps faster. A Hiker can be had for $60, weighs 11 oz. and is not susceptible to freezing and dropping, so why would anyone spend the $100?