T-620H Hydraulic Hand Pump, 0-5000 psi. Model T-620 hydraulic pressure pump is small, lightweight and portable. The T-620 features a transparent reservoir to easy view of the test fluid. The pump is compatible with petroleum-based oils or hydraulic fluids. The reference gauge is mounted on the body manifold with a swivel fitting for easy viewing. A vernier adjustment allows for precisely control pressure. A vent valve is provided for quick and positive shut-off and pressure release. The pump is equipped with a 24 in (60.95 cm) rubber hose with 1/4 in NPT connector and 1/4 in BSP adapter for connecting to the instrument-under-test.