Bull Outdoor Products 44500 Island Venting Screen with No Mesh. With its superior products, facilities, and team, Bull Outdoor Products Inc. pioneered the concept of outdoor BBQ kitchens and grill islands, recognizing the need for backyard barbecue enthusiasts to bring their grilling talents to match those of professional chefs! The Island Venting Screen is an easy way to vent an island sink. Includes the island venting screen only, mesh is not included.