Brand: Lisle Manufacturer's Part Number: 69910 Part Type: Vacuum and Pressure Test Kits Product Line: Lisle Turbo Air System Test Kits with Smoke Adapter Summit Racing Part Number: LIL-69910 UPC: 083045699101 Gauge Diameter (in.): 2 1/2 in. Gauge Face Color: White Rubber Hose Included: Yes Quantity: Sold as a set of 14. Lisle Turbo Air System Test Kits with Smoke Adapter Lisle turbo air system test kits include T-adapter for connecting smoke machines to help locate leaks. The kits plug the output side of the turbo and the intake inlet， then air and smoke are applied through one adapter to show the presence of leaks within the system. The kits feature a pressure gauge， shut-off valve， pressure regulator， and stepped adapters. Lisle turbo air system test kits are available in a 14-piece kit for cars and light trucks and a 10-piece kit to fit most turbo systems on light-duty trucks and Class 7 and 8 semis. These patent pending kits can also be used on some cooling system hoses.