The Cummins Filtration Web Catalog has been redesigned and moved to a new URL The new URL for our Web Catalog is www.cumminsfiltration.com/catalog. The catalog is now even easier to search and features more flexible search options. Please update your links, bookmarks and favorites to the new URL as soon as possible. Click here to visit the new Cummins Filtration Web Catalog. REAL™ Information. REAL Easy.