The Ravenna heater cover from Classic Accessories combines a striking style with durability, fade-resistance and convenient features. Dual zippers make covering and uncovering your heater easy. Rip- and-grip straps and bungees keep the zipper tight when closed. Structured vents stay open to prevent wind lofting and mildew and are lined with mesh barriers. Waterproof backing keeps your heater dry while double-stitched seams add strength and a stylish accent. With its adjustable hem cord and dual zippers, the Ravenna heater cover will fit snugly and protect your heater for years. 4-Year replacement warranty through manufacturer.Patent pending.