Pleated cartridges are the most common and most versatile type of filter. They are used in applications ranging from transportation and power generation to dust and fume collection in almost any industrial plant. TSI offers all major OEM types and styles. We can quickly cross-reference from the manufacturer's name and part number to determine the cartridge you use. If you are having problems or have experienced a change in operating conditions, we can work with you in selecting a better alternative. All of our filters meet or exceed government and industry standards.