Field-Proven Reliability: Trusted by contractors for boiler receiver tank applications where consistent proportional feeding is required

Streamlined Installation: Designed for rapid field replacement

5-second operator in place of the 6-second 41637

this genuine Bard replacement part ensures the electrical timing and sequence of operation meet original factory specs

The unit is rated for an operating temperature up to 150

Siemens Building Technology 188-0034 Thermostat 318423-701 Field-Proven Reliability: Trusted by contractorsThe Siemens Building Technology 188 0034 is a professional grade unit mounted pneumatic thermostat engineered specifically for technical retrofitting applications. This Retroline replacement for Johnson Controls T 3300 2 provides reliable control for heating and cooling systems in unit ventilators and fan coil units. Utilizing a liquid filled sensing element with a 96 inch capillary and a 3 8 inch diameter remote bulb, it ensures accurate temperature