PB 3307278 Rear Hopper Flap for Minuteman Power Boss Sweepers and Sweeper/Scrubbers. A heavy duty reinforced cloth inserted neoprene hopper rear flap. Commonly listed as the rear feed inner flap. An rectangular shaped flap with 11 mounting holes. Measures 54". Held in place by the rear flap angle. Works in conjunction with the rear outer flap, PB 3307279. Fits Minuteman Power Boss models: Armadillo SW9 Series (9XV, 9XR, 9XR Europe), and other models. One rear hopper flap is required per unit. Priced per flap. Replaces Minuteman Power Boss 3307278, 307278. Our Part Number PB 3307278