The Deflecto GVHAW4 Supurr Guard Louvered Vent Hood is a 4-inch white louvered vent hood assembly designed for exhaust applications. This unit includes the hood, pipe, and collar, arriving pre-assembled for straightforward installation. A key feature is the integrated bird and rodent guard, which helps prevent obstruction of the vent while remaining removable for maintenance and cleaning using standard tools. The part number for this specific model is PEVENGVHAW4.