✦ The tubing and chamber are made of virgin grade, non-toxic, non-irritant PVC material. ✦ The flow regulator and piercing spike are made from medical friendly ABS compound to offer superiorperformance. ✦ The protective cap is manufactured from medical grade LDPE to offer due protection of piercing spike andbetter penetration of EO for sterilization ✦ The flow regulator allows adjusting the flow of the infusion solution between Zero and maximumsmoothly. ✦ The set is provided with a fluid filter