The Coulter 6C Cell Control is a vital tool for ensuring the accuracy and reliability of your hematology analyzer. This product comes in a box of 12, with each vial containing 3.5mL of control solution. The box includes 4 vials each of Levels 1, 2, and 3, allowing for a comprehensive range of testing. With a shelf life of 39 days, this product is suitable for labs with regular testing schedules. Please note that this product is only available for shipping within the Continental US.