The Brooks SLA5800 Elastomer Sealed Mass Flow Controller SLA585071BCF1A2A1 is a high-quality flow control device designed for precise control of gas media such as Nitrogen. With a port diameter of 1/4 inch and a unit quantity of 1, this controller is manufactured in the United States by the reputable brand Brooks. The elastomer sealed design ensures accurate and reliable flow control, making it an essential component for various industrial applications requiring accurate gas flow measurement.