The Coulter 6C Cell Control is a high-quality laboratory tool designed for accurate cell control. This product comes in a box of 9 units, each containing 3.5mL of control solution. The box includes three each of Levels 1, 2, and 3, providing a range of control levels for versatile use. This product is designed for use within the Continental US only. Please note that the Coulter 6C Cell Control has a shelf life of 39 days from the date of manufacture. This product is perfect for any laboratory or medical facility that requires reliable and precise cell control. Product code: A59925.