Clean Water Tank for UWANT B100-S - GrayClean Water Tank for UWANT B100 S Gray The UWANT B100 S clean water tank is an essential accessory that allows for effective and convenient use of the UWANT B100 S vacuum cleaner. Its 1800 ml capacity ensures long term use without the need for frequent refilling of water, which makes cleaning more comfortable and less time consuming. The transparent material allows for easy control over the amount of water, which increases the convenience of use.