The Arbe direct flow dust collector allows the use of only 2 hanging filter bags along with a second stage ultra-weave pleated filter to provide exceptional filtration.  Since it uses two separate filter bags, not only is it the most cost effective option it gives you the option of separating your metal collection by hooking up a different hood to each bag.  Hoods not included. See our 8543105 - which has the same 3" duct size. Filter changing is so simple, you can easily change the filters in 30 seconds!!  One set of handing filter bags and a pleated filter are shipped with the unit.  Replacement bag: 8541293, replacement pleated filter: 8541294.  This dust collector utilizes a 1/2 HP suction motor that creates 600 CFM and includes a built in silencer for whisper quiet operation (approx. 55 decibels with hoses attached, rated at 63 decibels without hoses).  Two 3" inlets.  Overall dimensions are 16"W x 16"L x 20"H and it weighs 65 lbs.  Electrical: 110V, 1 Ph, 60Hz.  Made in the USA.