BD Vacutainer Plastic EDTA Crossmatch Tubes 6ml with Pink Hemogard Closure (Pack of 100) BD Vacutainer Crossmatch Tubes are available in Plastic EDTA and plain clot activator tubes. They are used to obtain either a serum sample or a whole blood or EDTA sample. A pink cap and a specialised crossmatch label, which is larger than the usual block label to allow more information to be recorded. Available in sizes 4ml and 6ml. Specifications: Additive: K2EDTA (Spray) Cap colour: Pink Label type: Crossmatch Volume: 6ml Size: 13mm x 100mm