JIVTO Glycerin-Filled Pressure Gauge, 2-1/2" Dial, 0–300 psi

Monitor pressure on a pump, pneumatic line or well tank with a clear 2-1/2-inch dial and a 0–300 psi range. Glycerin filling helps dampen vibration and pressure pulsations, supporting steadier readings in fluctuating systems. A 1/4-inch NPT male lower connection fits installations designed for that mounting style. The stainless steel case and polycarbonate window suit practical workshop and system-monitoring setups.

Tech specs

• Type: Glycerin-filled pressure gauge
• Dial: 2-1/2-inch, dual scale
• Pressure range: 0–300 psi
• Connection: 1/4-inch NPT male, lower mount, brass connector
• Case: 304 stainless steel
• Window: Polycarbonate
• Protection: IP67 dustproof and waterproof rating
• Dimensions: 8.9 x 3 x 6.6 cm
• Weight: 184 g
• Design standard: ASME B40.100

The dial size gives the reading area useful visibility while keeping the gauge suited to a range of installation settings. Its lower-mount connection places the fitting beneath the dial, and the brass connector provides the threaded interface for a matching 1/4-inch NPT port. Check that the system connection and mounting orientation match before installation.

Best use cases

This gauge is intended for pressure monitoring in applications such as pneumatic air systems, pumps, hoses, well tanks, irrigation and low-pressure testing. It can be used with gas or liquid media that are not corrosive to brass, so it is suitable for systems where the measured medium is compatible with the brass internal components. The 0–300 psi range provides a practical choice for users who need to observe pressure within that range rather than select a gauge intended for a substantially different pressure range.

In a pump or well-tank setup, the dial provides a local reading at the point where the gauge is installed. In air systems or hose assemblies, glycerin filling helps reduce the effect of vibration and pulsation on the movement, making readings easier to follow as pressure fluctuates. The stainless steel case and IP67 rating add protection for installations exposed to dust or water.

Usage tips

Match the 1/4-inch NPT male lower mount to a compatible threaded port and install the gauge so its dial can be read clearly. Use it only with gas or liquid that is not corrosive to brass, and keep the system’s operating pressure within the gauge’s 0–300 psi range. When taking a reading, allow the system pressure to settle where practical, the glycerin filling helps dampen movement caused by vibration and pulsation. The gauge is rated for a maximum medium temperature of 140 °F/60 °C.

Buying verdict

Choose the JIVTO when a system needs a glycerin-filled gauge with a 2-1/2-inch dial, a brass 1/4-inch NPT lower connection and a 0–300 psi range. Compared with an unfilled gauge approach, its glycerin damping is a useful feature for installations subject to vibration or pressure pulsations. It suits pump, pneumatic, hose and well-tank monitoring where the threaded fit, pressure range and brass-compatible medium match the setup.