Automatic timers clean the filter media with pulse jet reverse flow air; dropping retained material back into the process. Installation is quick and easy with flanged outlet for dust discharge. A hinged door provides easy bag access. This product also features differential pressure gauges, as well as the following options: Carbon steel or stainless steelNEMA 4, NEMA 4X, 79, 24V DC timer controls16 oz. polyester bagsbottom removalSmooth wire cages and safety gridSupport legs and hopper (dust collector only)Top removal designExhaust fanHigh temperature design