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The WATTS 240935 is a dual-function temperature and pressure gauge designed for monitoring both thermal and pressure conditions in a single instrument. It reads temperature in the range of 60 to 320 degrees F and handles pressure up to 150 psi. The gauge features a 1/2-inch MNPT back-mount brass stem, making it suited for inline or tank-mounted installations in plumbing, hydronic heating, and HVAC systems. Licensed plumbers and HVAC technicians install this type of instrument wherever simultaneous temperature and pressure readings are required at a single service point.
This gauge is a practical fit for residential and light commercial hydronic heating systems, boiler installations, water heaters, and pressure vessels where dual monitoring is required. The back-mount configuration allows clean panel or pipe installations where a flush or recessed gauge presentation is preferred. The brass stem construction offers corrosion resistance in typical potable and heating water applications.
Designed as an OEM-style replacement or direct-install temperature and pressure gauge for residential and light commercial boiler, water heater, and hydronic heating system applications requiring a 1/2-inch MNPT back-mount connection.
Installation is typically performed by a licensed plumber or HVAC technician. Shut off system pressure and allow the system to cool before removing any existing gauge or fitting. Apply appropriate thread sealant or PTFE tape to the MNPT threads before installing — do not overtighten, as brass fittings can be damaged by excessive torque. Verify that system operating pressure and temperature remain within the rated limits of this gauge after installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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