AFilter cassette designed for bagFilters standard type F5 or F7. The cassette housing is manufactured from galvanised sheet steel. It has a hinged cover underneath fitted with a quickrelease latch, which makes it easy to replace theFilter. TheFilter cassette can be connected directly on to the duct and should always be fitted in a flat or vertical position. If fitted vertically, the direction of the air flow must be downwards so that theFilter bags do not collapse. BFKFilter media, in the F5 or F7Filter classes, are ordered separately and supplied individually. The recommended final pressure drop is 200 Pa for the F5Filter and 250 Pa for the F7Filter. The cassette is fitted with connections for connecting to a pressure sensor.