With the Rowenta ZR331A accessory set X-Wash, you can keep your Rowenta X Wash clean. You get 2 replacement mop rollers. You can use them to replace the old, dirty, or worn mop roller of your electric mop. After 6 months, you replace the mop roller so you prevent bad odors. This way, your electric mop cleans better. Thanks to the built-in holder, you can replace the mop roller without any effort. You can use the accessory set with the Rowenta X Wash GZ1032.