General Industrial Filtration
3M
Flow Ezy Filters
Pentair Industrial
Norman Filter Company LLC
Purolator
Mueller Strainers

Critical Healthcare and Food/Beverage Filtration
3M

Fabricated Systems
3M
Pentair Industrial
SunSource

Filter Housings
3M
Pentair Industrial
Norman Filter Company LLC

Separators
Lakos

Valves
Apollo Valves
Delaware Manufacturing Industries Corporation (DMIC)
DuraValve, Inc.
KMT - Precision System Components
Lance

Gauges & Instrumentation
Wika
Dynamic
Orange Research

Pumps
ARO
Aurora
Dynamic

Compressed Air Filtration
3M
Donaldson
Norgren
Norman Filter Company LLC
Wilkerson

Roll Media
Flo-Tec
Hanes
Midwest

Direct Replacements
Filter-Mart
Fluitek
Norman Filter Company LLC
Purolator
Royal

Air Filtration
Airguard
Koch
Sunshine