Brands
- ABB
- Abex
- Aerzen
- Air Refiner
- Airguard
- AirMaze (Donaldson)
- Airsan
- Airtek
- Allen
- Allis Chalmers
- Allison
- Alsop
- Ambac
- American Air Filter (AAF)
- American Filtration
- American Filtration Technologies
- Ametek (Pentek)
- AMF Cuno (3M)
- Anrod
- Aqua-Pure (Cuno)
- Arburg
- Argo
- Arlon (Parker)
- Army Navy
- Atico-Internormen
- Atlas Copco
- Baldwin (Clarcor)
- Balston (Parker)
- Banner
- Bauer
- Beach
- Beach Russ
- Becker
- Bendix
- Big A
- Bowser
- Briggs
- Brunswick
- Burgess-Manning (Nitram)
- Busch
- Cambridge
- Camfil Farr
- Can Flo
- Carborundum
- Carey
- Case
- Caterpillar
- Centac
- CFM
- Champion Labs
- Chemflo / Process Filtration
- Chicago Filter
- Chicago Pneum
- Cimco
- Cincinnati
- Clarcor
- Clark Filter (Clarcor)
- Commercial
- Compair
- Consler
- Consolidated
- Continental
- Cooper Coravac
- Crosland
- Cross
- Cuno (3M)
- Curtis
- Custom Service & Design
- Daboco
- Dahl
- Danly
- Davey
- De Laval
- Deere
- Delair (SPX)
- Deltech (SPX)
- Detroit
- Deutz
- Dollinger (SPX)
- Domnick Hunter (Parker)
- Donaldson
- Dresser
- Dunham-Busch
- Duralife
- Eaton
- Eden
- EDM
- Eldorado Tool
- Elox
- EPE Eppensteiner (Donaldson)
- Endustra
- Everpure
- Excel
- Facet (Clarcor)
- Fairey Arlon
- Farr
- Farr Tenkay
- Faudi
- Fife
- Filenco
- Filpro
- Filter Specialists, Inc. (FSI)
- Filterflo
- Filterite
- Filtration Systems
- Filtri
- Finite (Parker)
- Flair
- Flanders (PrecisionAire)
- Fleetgaurd
- FlexKleen
- Flo-Line
- Flow-Ezy Filters
- Fluitek
- Fluitron
- Ford
- Foremost
- Fram
- Fulflo
- Fuller
- GAF
- GE
- Gardner Denver
- Gast
- Gelman Gemoc
- General
- GMC
- Grayco
- Gressen
- Grimmer Schmidt
- Gulfgate Equipment
- Hankison (Hankinson)
- Harley
- Harmsco Filtration
- Harvard
- Hastings
- Heavy Duty Air
- HeidelBerg
- Heil
- Henderson
- Hilco
- Hilliard
- Hitachi
- Hoffman
- Honan Crane
- Honeycomb
- Husky
- Hy-Pro
- Hycon
- Hydac
- Hydra Screw
- Hydraulics (Parker)
- Hydravane
- Hydreco
- Hygeico
- Hytrex
- Image
- Industrial
- Industrial Hydraulics
- Industrial Filter Manufacturers (IFM)
- Ingersoll Rand
- Internormen Technology
- Jaeger
- Jemaco (SPX)
- John Deere
- Johnson
- Johnson Controls
- Jonell
- Joy
- Kaeser
- Kaydon
- Keene
- Kellogg American
- Kemp (SPX)
- Keystone Filter (Met-Pro)
- King
- Kinney
- Knecht
- Koch
- Kohler
- Lamson
- Lenz
- Leroi
- LHA (Donaldson)
- Luber-Finer (Champion)
- Mahle
- Mann Filter (Mann+Hummel)
- Marion Fluid Power (Maradyne)
- Marsh
- Marvel
- Master Pneumatic
- Mattei
- Met-Pro
- Meuller
- Meissner
- MFP
- Michigan Fluid
- Microklean
- Microwind
- Midwesco
- Miller
- Millipore
- Mitsubishi
- Moog
- Motorguard
- Muller Martini
- Murphy
- NAFCO
- Nelson
- New York Air Brake
- Norco
- Nordson
- Norgren
- Norman Filter Company
- Nowata
- Nuclepore
- Nugent Filters
- Osmonics (G.E. Water)
- Pako
- Pall
- Pall Hydraulics
- Pall Trinity
- Parker
- Parker Arlon
- Parker Hydraulics
- Parker PDF
- Parker Process
- Parker Racor
- PECO Facet (Clarcor)
- Peerless
- Pentair
- Pentek (Ametek)
- Permea
- Perry
- Pioneer
- Pneumatech
- Pneumatic Products (SPX)
- PPC
- PTI
- Pure-Aire
- Purolator
- Quincy
- Quincy Northwest
- Racine
- Racor (Parker)
- Refilco (NAFCO)
- Rexroth
- Rietschle
- Ripley
- Rockford
- Rol PakRosean
- Rosedale Products
- Rotron
- Royal
- RP Adams (Serfilco)
- Sahara
- Schramm
- Schroeder Industries (Hydac)
- Selas
- Serfilco (Service Filtration Corp)
- Sethco
- Skinner
- SMC
- Smith Filter
- Solar
- Solberg Manufacturing Inc (SMI)
- Sparks Filters (Shawndra)
- Sperry Vickers
- Standard Filter Corporation
- Stauff
- Staynew
- Stoddard
- Stokes
- Strainrite
- Sullair
- Sullivan
- Sunshine
- TDC Filter (Midwesco)
- Technolab
- Teel
- Torit
- Torite
- Tri-Dim
- Zander (Parker)
- Zeks
- Zinga
- Zurn








