Biltek 2 In 1 Brake Bleeder & Vacuum Pump Gauge Test Tuner Kit Tools DIY Hand Tools New Auto Hand Held Brake Bleeder & Vacuum Pump Gauge Test Tester Tuner Tool Kit Set Hand Held Vacuum Tester and Pump Brake Bleeder Kit Works on all Makes and Models of Cars Tests automotive vacuum systems Brand: Biltek | Smooth Action Pull Trigger Gauge Size: 2" Diameter