Websites that help with the cross referencing of Pall filters include SwiftFilters.com, Hydac.com and KaydonFiltration.com. Cross reference the filters by inputting the parts into these databases.
SwiftFilters.com offers numerous parts for filters that are fully functional and conveniently interchangeable with other parts from Pall. The company has a long list of parts from which to choose. However, Swift Filters is an independent manufacturer that only handles the cross referencing of the supplies, and does not actually supply them.
Hydac is different in that it has an entire list of manufactures that can do the cross referencing of the Pall filters. Finally, KaydonFiltration.com is a site that cross references up to five parts from Pall, and other corporations as well.