OmniClean Dual Bucket Kit, 1.5 gal, Black/Blue/GrayClean floors faster and with less water than ever before, thanks to the Unger OmniClean Dual Bucket Kit! This professional system uses dual buckets to separate your clean and dirty solution. The blue marked StayClean Charge Bucket will hold your clean solution while the all gray bucket removes debris from the mop pad. Use the scrub board to remove larger debris and then the wringer to get the remaining debris off the mop pad and into the dirty water