I am not familiar with these units. Generally, what I said in my original post stands - if there is any passive circuitry in series with the AC line, there will be some loss. This is unavoidable. The loss might be insignificant in a particular application, but there is a loss nontheless. The current rating of the filter will be the telling specification. If it is rated to deliver 15 amps, then that is what it will pass without problems.