Mercury - Tow N Stow Outboard Cover Verado Series Polysoft II Marine Material 8M0228538. Overview. There is something reassuring about knowing your engine is protected before you even pull out of the driveway. When I slip the Mercury Tow N Stow Cover over a Verado, it feels like I am giving the engine the same kind of care I expect it to give me on the water. You look back in the mirror while trailering, see that bright white cover hugging the cowl, and you just know it is doing its job. Whether