This exhaust extension allows for safe venting of exhaust fumes from an unoccupied enclosed area. The buyer will receive: a custom low profile exhaust stub that will accept the stock spark arrester cone screen (as shown in picture). This is machined with clearances for the generator and has a 3/4 NPT male thread. Also included is a custom brass nut that will allow the spark arrester screen mesh to be inserted. This nut and screen can be added with the hose and hose adapter removed.