VACUETTE® TUBE 4 ml FX Sodium Fluoride / Potassium Oxalate, available at Scientific Supplies & Technology Inc. This sterile, non-ridged tube with a 13x75 grey cap-black ring design, ensures the utmost security and efficiency in blood sample collection and preservation. Each inner pack contains 50 tubes, and sales units are available in quantities of 1200, making it an ideal choice for high-volume laboratories. Engineered with FX Sodium Fluoride / Potassium Oxalate, it facilitates accurate glucose testing by inhibiting glycolysis. Trust in our commitment to quality and innovation for your laboratory needs.