Draper Universal Cooling System Vacuum Purge And Refill Kit - CAV1Expert Quality, dramatically reduces cooling system refill time by preventing air locks thus avoiding time consuming cooling system bleeding. Plugs into air line then attaches to the cooling system to create a vacuum. Filler hose is then connected allowing pre mixed coolant to flow easily into the system. Supplied with gauge, 1. 3M of clear hose, four adaptors and hose end filler. Packed in carrying case. Key Features Expert Quality design ensures