The โBackcheck Valve Extension Set โ 471979โ is a high-quality medical tool designed for efficient and safe usage. It features dual backcheck valves, ensuring a smooth and controlled flow of fluids. The set comes with both proximal and distal luer lock connections, providing secure and leak-proof connections. With a priming volume of 1.78mL, this extension set ensures minimal wastage of valuable medical fluids. The set measures 8 inches in length, providing ample reach for various medical procedures. This product is available in a case of 100, making it ideal for busy medical facilities. Please note, this product requires a prescription for purchase.