CARBO Instruments Vacuum Pressure Gauge 0 to -30 inHg, Glycerin Liquid Filled, 2.5" Dial, 1/4 NPT Back Mount, 304 Stainless Steel Case, Brass Wetted Parts, Dual Scale inHg/Bar - ASME B40.1 Grade A

About this product

ASME B40.1 Grade A Accuracy (±2-1-2% of Span): Professionally manufactured for reliable performance; large 2-1/2" (63mm) dial with high-contrast markings ensures clear, easy pressure reading. Liquid Filled for Stable Reading and Vibration Dampening: Glycerin filling stabilizes pointer movement and helps dampen vibration, pulsation, and sudden pressure spikes to reduce needle flutter and improve readability. Back Mount Design for Rear Connection Installations: 1/4" NPT back mount connection is ideal for panels, regulators, manifolds, and equipment layouts where rear-entry installation is preferred. Optional Mounting Bracket Compatible: Designed to accept a compatible panel mounting bracket that fits the special groove at the connection area for secure installation where required. Heavy-Duty Stainless Steel Case: Rust-resistant 304 stainless steel case with durable brass wetted parts, chrome-plated brass connection, copper alloy internals, and polycarbonate lens. For air, water, oil, and other media non-corrosive to brass. Not for oxygen service.