The hp 131a magenta toner cartridge allows you to produce professional documentation images and graphics in the comfort of your home or office setting designed to ensure productivity by reducing the need for cartridge changeovers by delivering unhindered printer operation the hp 131a magenta toner cartridge ensures youll only ever need to replace the cartridge when its empty and time to do so compatible with hp laserjet pro 200 colour m251n laser printer hp laserjet pro 200 colour m251nw