The Xerox built Brother (TN450) Toner for the HL2240. Each Xerox built Brother (TN450) cartridge is built with quality using stringent lab and environmental processes. Free shipping for each two unit order, unit yield is 2,600 pages. REDONDO TECHNOLOGY products use ISO 9001/14001 processes and we are an EPA Wastewise partner. Each unit has a one (1) year manufacturer’s warranty on both the toner and machine. Together we are partnered in keeping plastic and scrap out of landfills, we will recycle empty units at no charge for customers.