This metal fuser film sleeve is designed as a replacement FM4-6495 and is compatible with iR 1730, 1730i, 1730iF, iR 1740, 1740i, 1740iF, iR 1750, 1750i, 1750iF, iR 400, and iR 500 devices.It is engineered to meet standard operational requirements for heat resistance and fitment, supporting print output and machine functionality.