This heavy-duty custom fit cover from Yoder Smokers is designed to fit the Yoder Smokers YS640 Built-In Pellet Grill. Snaps fasten around the bottom with tension chord banding to tighten and keep out rain and snow. The air ventilation patch allows wind to pass through the grill naturally while protecting your grill from the elements. The chimney stack will need to be turned down to accommodate the cover. It installs quickly and easily making it a hassle-free way to protect your investment from the elements.