Plastic Round Tube: 1/4" ID, 0.436" OD, Tan, Paper-Base Phenolic Laminate (XX) MPN:PBGT.250.437N

This pressure test plug features an impressive 1-3/8-inch outside diameter with standard pipe threaded end that accommodates numerous pipe size options while remaining compatible across various applications involving high or low pressures testing needs. Its durable brass construction offers exceptional corrosion and wear resistance, ensuring longevity during the most demanding tasks without worry of leakage. A precision machined O-ring helps maintain a proper seal that enhances accuracy while monitoring pressure levels with ease - ideal for use within hydraulic systems requiring consistent readings for optimal performance.