Eliminates the introduction of bubbles and airlocks into the cooling system and dramatically reduces system filling time. No more time-consuming cooling system bleeding and messy spills to clean up. Automatically conducts system leak test. Simple operation requires a workshop air supply and does not require a fiddly interchange of vacuum and fluid hoses. Refill the system by attaching the filler hose and opening the valve allowing your premixed coolant to flow into the system. The system can be filled manually via the funnel, which has a built-in shut-off valve that helps prevent airlocks. Supplied with a 1.25m filler hose, six reservoir adaptors 31, 35, 40, 42, 45mm, a cone adaptor and a storage case.