ANCEL S200 Smoke Machine Automotive with Built-in Air Pump and Pressure Gauge, Evap Smoke Machine Leak Detector, Dual Mode Auto Fuel Pipe System Vacuum Leak Smoke Tester for All Car/Motorcycle/Truck. Adapter cone set is applicable for 25~55mm round shaped port, Intake bladder is applicable for 25~140mm port, especially when the port is not round shape, allowing you to detect leak for different pipe system and fit into any object you may need.