The Nederman 803 Series Triangular Exhaust Extraction Nozzle is constructed of heavy duty EPDM rubber which reduces surface heat build up on the nozzle and protect the vehicle from scrapes or paint damage. The 803 Series Triangular Exhaust Extraction Nozzle is secured to the vehicle by a fully adjustable, quick release locking clamp which will ensure positive attachment to vehicle exhaust pipe. A built in guard screen prevents debris from being drawn into the exhaust system. The 803 Series Triangular Exhaust Extraction Nozzle has a flexible metal heat shield hose attached which slides into the exhaust hose, thereby acting as a heat shield to the exhaust hose. The 803 Series Triangular Exhaust Extraction Nozzle is equipped with two ports: one will enable sampling of exhaust gases while attached to the exhaust pipe and the other port will allow the return of the sample gas into the exhaust system. The 803 Series Triangular Exhaust Extraction Nozzle mouth is a triangular opening which will accommodate single exhaust pipes and most twin side by side exhaust pipes.