Catalog
- Air Maze
- Amf/Cuno
- Arrow
- Baldwin
- Balston
- Benner
- Commercial Filters
- Crall
- Dollinger
- Donaldson
- Fairey
- Farr
- Filterite
- Fleetguard
- Fluid Power
- General Filter
- Kunkle
- Michigan
- P.T.I.
- Pacific Sintered
- Parker Hanninfin
- Peerless
- Quincy
- Royal
- Schroeder
- Snow