For technicians servicing Williams furnace replacement parts

ensuring the system operates only when the outdoor air is within a compatible range for the heat exchanger or cooling coil

supporting consistent heat delivery throughout the winter season

Rugged Design: Features high-amperage contacts and a durable vapor-filled capillary for long-term sensing stability

Ashcroft 25W1005H02L-VAC Gauge 340155-7024 For technicians servicing Williams furnaceThe Ashcroft 25W1005H02L VAC is a commercial grade vacuum gauge engineered for precision measurement in demanding HVACR and industrial environments. Featuring a 2 1 2 inch dial size and a durable black painted steel case, this instrument is the official updated version of the legacy 25 1005 02L VAC model. It utilizes a reliable bronze Bourdon tube and a robust 1 4 NPT bottom mount connection for versatile installation. At the heart of its performance