The interior of these Vacuette tubes is coated with K2 EDTA.. EDTA binds calcium ions and blocks the coagulation cascade.. Pull caps are lavender with black rings.. 13 x 75 mm tubes have a volume of 3 mL.. Clear, silica-coated tube is made of polyethylene terephthalate (PET)..
![Greiner Bio-One - VACUETTE® Venous Blood Collection Tube K2 EDTA Additive 4 mL Pull Cap Polyethylene Terephthalate (PET) Tube [50/PK]](http://everydaysupplyco.com/cdn/shop/files/132166e95e60b26f58420fa221954e64eaff9943.jpg?v=1742839066&width=286)
![Greiner Bio-One - VACUETTE® Venous Blood Collection Tube K2 EDTA Additive 4 mL Pull Cap Polyethylene Terephthalate (PET) Tube [50/PK]](http://everydaysupplyco.com/cdn/shop/files/132166e95e60b26f58420fa221954e64eaff9943_1024x.jpg?v=1742839066)