Mercury - Tow N Stow Outboard Cover 225-400 Horsepower Verado Series Polysoft II Fabric 8M0221494. Overview. There's something comforting about knowing your engine is protected the moment you step away from your boat. When you run a Verado, especially one in the 225-400 Horsepower range, you depend on it more than most people realize. It's your power, your confidence, your way back home. A reliable cover gives you the reassurance that your engine is safe from sun, grit, salt, and road dust-wheth