The ‘Circuit Breathing Portex Anes Ped 40-100 Tubing 1L Bag 20Ca – 492804-NL’ is a pediatric anesthesia breathing circuit. It is designed to be flexible and durable, ensuring a secure and efficient connection between the patient and the anesthesia machine. The circuit measures between 40 to 100 inches in length and comes with a 1L bag. It is sold in a case of 20 units. This product is ideal for medical professionals in hospitals and clinics that require reliable and high-quality equipment for their pediatric patients.