- Knight Filter Corp
- Knight Filter Corp Houston
- Knight Filter Corp Houston
- Lafourche Manufacturing Inc
- Leonard Engineered Products
- Lesac Corp
- Liquid Handling Specialists
- Liquid Process Systems Inc
- Liquid Solids Separation Corp
- Liquiflo Inc
- Lizecca Filtration Solutions
- Lodestar Industrial Equipment
- Lowery Robbins Filter Mfg
- Luxx Ultra-Tech Inc
- Mahle Tennex
- Mancel Associates Inc
- Mancel Associates Inc
- Matrix Separation
- Maverick Manufacturing
- Maverick Manufacturing
- Mc Masters Filtration Inc
- Mc Masters Filtration Inc
- Meissner Filtration Products
- Memtec America Corp
- Memtec/Fluid Dynamics
- Michigan Truck Equipment Co
- Microdyne Products
- Micron Industries Inc
- Micron Technologies
- Midwest Filter Corp
- Miller's Air & Water Prfctn
- Monlangroup
- Moody Price Inc
- MSC Liquid Filtration Corp
- National Filter Media
- National Water Inc
- New England Filter Co
- New England Filter Co
- New England Filters Co
- New Logic Research Inc
- Next Process Technology
- NMW Inc
- Nono Specialty Co
- Northeast Filter & Equipment
- Northern States Filtration Co
- Northland Maintenance Co
- Northland Maintenance Co
- Ohio Filter Co
- Oliver Industrial Sales
- Omnipure Filter Co
- Optimum Filtration Co
- Orival Inc
- Osprey Manufacturing Corp
- Pacific Water Conditioning
- Packaged Systems Inc
- Pall Corp
- Pall Corp
- Pall Corp
- Pall Corp
- Pall Industrial Hydraulics
- Palm Engineering & Sales Inc
- Parker-Hannifin Corp
- Parker-Hannifin Corp
- PBT Distributors Inc
- PCI Membrane Inc
- Per Co
- Perfect Filtration
- Perfect Filtration Systems
- PERRY Equipment Corp
- Peterson Technical Products
- PFC Equipment Inc
- Plymouth Products Inc
- Pollard Industries LLC
- Pressroom Filters Inc
- Price Thompson Inc
- Pro-Tec Equipment Co
- Process Engineering & Equip Co
- Process Filter Fab Inc
- Process Metrology
- Process Separations
- Process Technologies
- Progressive Product Marketing
- Progressive Product Marketing
- PTI Technologies Inc
- Puritec Systems Inc
- Puro Rabjohn Water Equipment
- Purolator Air Filtration
- Purolator Facet Inc
- Qualtiy Water Filters
- R H Creager Inc
- R P Adams Co
- Racor
- Ray Camp Co
- Richard Ballek
- Ricsan Filters
- Ricsan Products LLC
- Romac Inc
- Rooney Equipment Co
- Royal Filter Mfg
- RPA Process Technologies
- Sea Con
- Sea Con
- Sea Con
- Seagull Distribution Co
- Separation Solutions
- Separation Technologies Inc
- Separmatic Fluid Systems
- Sepro Membranes
- Smart Tech
- SMI
- Space Age Lubricants
- Sparkler Filter Inc
- Sparkler Filters
- Specialty Process Equipment
- Stavo Industries Inc
- Stephen King & Assoc
- Stephen King & Assoc Inc
- Story Electric Co
- Strainrite Southeast
- Swift Filters Inc
- System One Filtration
- T E Byerly Co
- TAG Inc
- TEK Products
- Thompson Filtration
- Thompson Filtration Products
- Thompson Filtration Products
- Timfilco
- Tiocco Filtration Systems
- Tip Top Sales
- TMCI Industries Inc
- Total Filtration Svc
- Townecraft Of Reno
- TPS Technical Process Solu
- TPSLLC
- Tro-Jon Manufacturing Corp
- Tro-Jon Manufacturing Corp
- U S Petrolon Ind
- Ultrapar Inc
- United Filters
- United Filters
- United Filters
- US Filter
- USF Filtration & Separation
- USF Filtration & Seperation
- Vanguard Industries
- Vanguard Industries
- Velcon Filters
- Velcon Filters
- W J Werther Assoc
- Wagner Process Equipment
- Water Specialties Inc
- Weaver Falgout Carruth Inc
- Westco Sales Inc
- Western Filter
- Western Filter Co Inc
- Western Filter Co Inc
- Westflow Co
- Williams Equipment & Controls
- Wolf & Assoc
- Wood Equipment Co
- Wrangler Corp
- Young Rochester Corp
- Zinga Industries Inc