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Autometer’s GM Bowtie mechanical boost/vacuum gauge is a 2‑1/16" instrument that uses a precision Bourdon tube movement for accurate, durable readings without electrical power. It requires a simple 1/8" NPT pressure connection and ships with 1/8" NPT fittings, nylon line and installation hardware. Modern LED through‑the‑dial lighting enhances nighttime visibility while the mechanical movement remains reliable in demanding environments.
Autometer GM Bowtie Black 2-1/16in Boost/Vacuum 30in HG - 20 PSI Mechanical
