PHFL Series High Flow Filter Cartridge is made of diameter 6 "(152.4mm), single open end, without inner core, inside to outside flow direction. Filter body have two types: melt-blown and pleated. And pleated filter is divided into two forms: standard and crescent-shaped. End caps and filter layer using hot-melt welding, no bonding agent, with a wide range of chemical compatibility, can be applied to various fields.