The Makita Water Supply Attachment Kit (191X01-4) is for use with the 18V LXT 5 in. Wet/Dry Masonry Saw (XCC01, sold separately) and the 12V MAX CXT 3 3/8 in. Tile/Glass Saw (CC02, sold separately). The Water Supply Attachment Kit can be easily attached or removed with a single action. It includes the guard cover, water tank, and water supply hose.