For 4000-Watt Open Frame Inverter Generators, Use The Wen Gnc400 Weatherproof Remember when you were safe from the elements? Give your generator the protection it deserves with the WEN Universal Weatherproof Generator Cover. Its durable exterior is made of a high-grade UV and water-resistant vinyl to fight rain, sleet, hail, snow and even sun, while the inside contains a cotton lining to prevent scratches and scuffs on the body of your unit. Although this cover has been specifically designed for WEN Open Frame Inverter Generator models GN400i and GN400iX, it will also fit any generator measuring 20 x 14 x 19 inches in size. Its elastic-banded base and drawstring allows the cover to adjust for a variety of shapes and sizes. Keep your generator safe from the seasons with the WEN Universal Weatherproof Generator Cover. Remember when your generator stayed protected? Remember WEN. Protect your generator from the elements with a weatherproof generator cover Durable vinyl exterior protects your generator from both water and UV ray damage Cotton interior prevents scratches and scuffs during use Designed to fit 20 x 14 x 19-inch 4000W open frame inverter generators Specifically designed for WEN generator models GN400i and GN400iX