Self-sealing lid provides leak-free seal; Large, easy to read graduations; Integrated Hydrophobic filter with >99.99% bacterial and HEPA efficiency; Non-Mechanical shutoff valve prevents overflow and contamination; Patient Port with integrated 90-degree elbow to prevent kinking; Frosted panel provides writing area when needed; Port Caps attached for quick and secure capping; Nestable for storage; Disposable, single use; Latex, BPA, and DEHP free