Just wanted to pass along a good customer service experience since they seem to be few and far between these days. I recently ordered a cartridge filter to upgrade my dust collector. The filter arrived damaged from shipping (it looked like a little bit of batting practice was had). I emailed Wynn the next morning and notified them of the damage...a few minutes later I received a response that a new filter was on its way. A couple days later the new filter arrived unscathed, with some additional bags for the dust collector. Great service - Id recommended looking into Wynn if considering a cartridge filter.