Intended Use I. V. Flow Controller is used for adjusting infusion flow speed in-vitro. I. V. Flow Controller is needed for controlled flow of infusion fluids of pediatric patients, critical drug infusions, and during anaesthesia. Components of The Product Hose (tube), Y-Port, Scale, Lid, Luer Locks. Product Features Constant flow rate. Universal male and female luer connections. Needle & Needle-free Y-Port injection options available. Standard tubing length 45 cm. Different tubing length available.