Powermatic 1791075CK Model PM1900 3 HP 1-Phase Dust Collector with Canister Kit Remote-controlled digital timer can be programmed for up to 99 minutes 2-micron canister filter offers over six times filtering surface area of standard bags All-metal duct construction for rigidity and improved air flow The large impeller is powered by a 3 HP motor for peak performance Triple 4-Inch dust ports allow for several hoses to be attached at the same time