Lowe's offers the Briggs & Stratton Rotating Surface Cleaner, model no. 6178, for $49. Pad your order to over $50 (this Kobalt 2-Piece Screwdriver Set costs $1.96) and apply coupon code "470000RRRR2997R" to cut it to $39, excluding padding. Opt for in-store pickup to dodge the $5.99 shipping charge. That's $10 below the best shipped price we could find. This attachment is 12" wide and features rotating jets, overspray protection, and compatibility with gas pressure washers up to 3,000-psi. Deal ends April 24.