Introducing the Marshall Excelsior Serviceman's Friend Test Fitting (Model: METL051), a reliable solution for your testing needs. Designed with a 1/8" MNPT connection, this fitting ensures a secure and leak-free interface for various applications. Crafted from durable materials, it withstands high pressures and is perfect for both professional and DIY projects. Whether you're in the field or working in a workshop, this test fitting is essential for accurate diagnostics and maintenance. Elevate your toolkit with this dependable accessory that combines quality and performance seamlessly!