... high powered soft bristle brush and sprayer that attaches to any hose to wash cars, RV's, boats, WhirlyWash is the revolutionary high ... powered soft bristle brush and sprayer that attaches to any hose to wash cars, RV's, boats, siding, patio furniture, windows and ... the scrubbing for you! 11 Way adjustable brush head Reduces water flow rates by as much as 50% 8" Stationary outer ...