Random Orbit Wet Sander. Based on the lightweight, low-profile model 3500. The Water Bug III offers the ultimate in wet color/clear sanding prior to buffing. Same ventori driven through-the-pad water delivery system as the Water Bug II. Comes with Hookit Pad #5246W, #1301-1 foam interface pad and 20'high presuure water hose. Built in pad release feature.