After draining the radiator the tester will evacuate all the air from the system. Within two to three minutes the gauge will read that vacuum is held and there are no leaks.

Coolant then can be refilled into the coolant system without creating any air locks. Supplied with interchangeable sleeves and tapered cones to fit all radiator necks.

  • Gauge Diameter: 1.1/2" (38mm).
  • Length: 6.1/2" (165mm).
Barcode # 9322159122787