Pleated filter gives you more surface area for higher flowrate and longer life.

• Constructed of pleasted polypropylene

High-Efficiency Pleated Polypropylene (PP) Filter Cartridges provide more surface area for higher flow rate and longer life. Designed for food, pharmaceutical, semiconductor, and other demanding process industries. All PP construction and gradient density microfiber media provide excellent micron ratings and high contaminant holding capacities. All components are biologically safe and are FDA compliant. Maximum temperature is 122 °F (50 °C). Cartridges have Buna N gasket/O-ring. Note: For optimal performance, change cartridge at 25 psid.