FILTER HOUSING FOR ACCOMMODATING A PLURALITY OF FILTER SIZES

摘要

A filter housing includes a duct having at least one registration flange and an access port sized to pass a plurality of seating rail assemblies. Each seating rail assembly is releasably engaged with the duct includes a seating flange. By locating the seating rail assembly at a particular distance from the registration flange, a channel of different sizes can be formed for receiving a filter having a corresponding dimension.