Winco Portable Generator Cover Large for HPS12000HE / WL12000HE / WL18000VE the WINCO large portable generator cover to protect your investment all season long. Storage can be hard on your generator. Moisture and dirt can damage the engine and generator windings over time. Often during transport and storage the generator is damaged by scrapes and dents. Winco’s heavy tailored canvas cover will protect your generator from these hazards protecting your investment. A built in band keeps the cover in place.