1、Strong Compatibility: Easily connect to diagnostic ports on hydraulic or pneumatic systems, compatible with for Parker's for SensoControl diagnostic equipment. 2、High Performance Engine Companion: Improve fuel system startup and hydraulic efficiency with for PD couplers, featuring flat face valves to minimize air inclusion and spills. 3、Easy Installation: Effortlessly push to connect with for PD series connectors, rated for 6000 psi pressure, 1/4in‑18 NPTF thread size, and 2.12in length, with knurled surface for better grip. 4、Sturdy Construction: Made of steel material for high strength, rust resistance, wear and impact resistance, not easy to damage and break, ensuring long term durability. 5、Stable and Reliable: Coupler is used to easily and quickly connect test instruments, meters, sensors, and flow sensors to system diagnostic test ports, ensure professional use.