Broan Nautilus White Wall Vent Kit includes 5 feet of 4-inch flexible duct, a louvered wall cap, a 3-inch to 4-inch adapter, a 4-inch diameter connector, and two 4-inch diameter clamps. Made of durable polypropylene, this vent kit ensures long-lasting performance. The flexible duct allows for easy installation, while the louvered wall cap prevents backdraft and keeps out pests. The adapter and connector provide a secure fit, and the clamps ensure a tight seal.