CARBO Instruments 300 PSI Glycerin Liquid Filled Pressure Gauge, 2.5" Dial, 1/4 NPT Lower Mount, 304 Stainless Steel Case, Brass Wetted Parts, Dual Scale PSI/Bar - ASME B40.1 Grade A

ASME B40.1 Grade A Accuracy (+/-2-1-2%): Professionally manufactured for reliable performance; large 2-1/2" (63mm) dial with high-contrast markings ensures easy pressure reading.

Liquid Filled for Stable Reading: Glycerin filling stabilizes pointer movement and dampens vibration and pulsation to prevent needle flutter and pressure spikes, ensuring accurate dual-scale PSI/Bar readings.

Industrial & Commercial Use: Ideal for air, oil, water, and gas systems including pumps, compressors, hydraulic presses, pneumatic equipment, irrigation, HVAC, pool filtration, and general machinery.

Heavy Duty Construction: Rust-resistant 304 stainless steel case with durable brass wetted parts and copper alloy internals; chrome-plated brass connection and polycarbonate lens for impact resistance.

Standard 1/4" NPT Lower Connection: Ensures compatibility with most regulators, tanks, manifolds, and fittings. Please verify your connection size before ordering.

The CARBO Instruments L25-SSL Series is a 2.5" liquid-filled pressure gauge engineered for reliable measurement in demanding industrial and commercial applications. Built with a 304 stainless steel case and durable brass wetted parts, this heavy-duty gauge delivers long-lasting performance in hydraulic, pneumatic, and fluid systems. Vibration Resistance: This glycerin-filled gauge is specifically designed to dampen vibration, pulsation, and sudden pressure spikes. The internal liquid stabilizes the pointer to reduce needle flutter, ensuring smooth readings and extending the life of the internal mechanism. It is ideal for pumps, compressors, and irrigation equipment where vibration resistance is critical. Precision Engineering: The large 2.5" (63mm) dual-scale dial displays both PSI and Bar for clear, accurate readings. Manufactured to meet ASME B40.1 Grade A accuracy standards +/- 2-1-2% of span, it provides the repeatable measurement required by maintenance professionals and engineers. Installation & Compatibility: Featuring a standard 1/4" NPT lower mount, this gauge installs easily into compatible regulators, manifolds, and tanks. The chrome-plated brass connection and polycarbonate lens provide corrosion resistance and impact protection. Designed for use with fluids and gases non-corrosive to brass, such as water, air, hydraulic oil, and diesel. Note: This gauge is not suitable for oxygen service.