Henry Technologies 3-033-201 Adapter Kit 321894-709 Because the CO2 sensing element

Because the CO2 sensing element includes an integrated reference light source

quiet operation while resisting dirt

Fail-Safe S/R Operation: The 2-wire 24V motor automatically springs to the open position upon loss of power

This valve is specifically rated for the internal flow requirements of the Laars 325 to 400 series

Common Questions How do I confirm if this board fits my specific boiler or water heater

Henry Technologies 3-033-201 Adapter Kit 321894-709 Because the CO2 sensing elementThe Henry Technologies 3 033 201 Adapter Kit is a specialized service component designed for seamless integration of oil level regulators with compatible compressor crankcases. Rated for high pressure applications, this 5 bolt 1 7 8 B. C. adapter provides a leak resistant interface critical for maintaining precise lubricant management in commercial refrigeration and HVAC systems. The kit includes the necessary high grade gasket and zinc plated