making it a reliable choice for contractors managing high-pressure hydronic systems

this assembly provides the durability required for long-term service in commercial boiler and chiller loops

This unit is specifically rated for low-pressure pneumatic signals typically up to 25-30 psi

As an OEM Viessmann part

including 43K49 and 65310400

Ashcroft B424B-200 Pressure Switch R-22 making it a reliable choiceThe Ashcroft B424B 200 Pressure Switch is a high performance instrument designed for demanding industrial and HVACR applications. Engineered for precision and reliability, this 0 200 PSI pressure switch features a Buna N seal and diaphragm, ensuring excellent chemical resistance and leak free operation. The SPDT (Single Pole Double Throw) switch mechanism provides versatile control options, while the 1 4" NPT connection allows for seamless integration