K2E K2EDTA
The inner wall of VACUETTE® EDTA tubes is coated with spray-dried K2EDTA or K3EDTA. EDTA acts as an anticoagulant, binding the calcium ions and interrupting the clotting cascade. These tubes are used primarily in haematology. 
Item: 454052
VACUETTE® TUBE 1 ml K2E K2EDTA 13x75 lavender cap-white ring, non-ridged
Item: 454246
VACUETTE® TUBE 3 ml K2E K2EDTA 13x75 lavender cap-black ring, non-ridged
Item: 454208
VACUETTE® TUBE 4 ml K2E K2EDTA 13x75 pink cap-black ring, non-ridged
Item: 454209
VACUETTE® TUBE 4 ml K2E K2EDTA 13x75 lavender cap-black ring, non-ridged
Item: 456279
VACUETTE® TUBE 6 ml K2E K2EDTA 13x100 pink cap-pink ring, non-ridged
Item: 456002
VACUETTE® TUBE 6 ml K2E K2EDTA 13x100 lavender cap-black ring, non-ridged, USA