Fuser film sleeve and lower pressure roller replacement part compatible with MF623, MF621, MF624, MF628, and MF626 printer models.This component is designed for use in fuser assembly units to consistent heat and pressure during the printing process.The film sleeve provides smooth for toner fixation while the lower pressure roller applies uniform pressure to bond the toner onto paper.Constructed to match specifications for performance and durability in standard operating conditions. : This part is made by an independent vendor.Any brand/model mention is for compatibility purposes only.