Combustion Leakage TesterAccurate and fast diagnosis of cylinder head gasket leaksQuick connector for use with 315 / 316 / 317 Series Cap AdaptorsSuitable for use with both Petrol & Diesel EnginesSupplied with both Standard & Sensitive ReactionTest Fluid (100ml)Replacement Bottles of Reaction Fluid available:Standard - 33194200 - 250ml (White Cap)Sensitive - 33194400 - 250ml (Black Cap)