the brother dr-243cl will deliver up to 18,000 pages. the dr-243cl comes with four separate cylinders, one for each toner cartridgee. this genuine replacement unit has been professionally designed for use with a brother laser printer. the dr-243cl comes with four separate cylinders, one for each of the toner cartridgees, ensuring that the printer can continue to deliver superior results. this unit will deliver up to 18,000 pages. compatible with a variety of printerspages comes with 4 cylinders, 1 for each toner cartridgee high quality original brother cylinder saves time and money make sure your brother printer continues to deliver the exceptional results you expect. although non-genuine spare parts are available, only the original dr-243cl cylinder unit ensures that your equipment will work quickly and efficiently. keep in mind that using brother supplies is the only way to keep your printer running at its best.