Sealey Cooling System Filler VS0041Eliminates the introduction of bubbles and airlocks into the cooling system and dramatically reduces system filling time. No more time consuming system bleeding. Reduces fluid waste and messy spills. Automatically conducts system leak test. Low profile design broadens application range especially for use on MPVs where lower windscreen lip might obstruct other tools. Simple operation requires workshop air supply and does not require fiddly interchange