Designed to create an airtight seal between the draft inducer blower assembly and the heat exchanger collector box

Whether you are performing routine furnace maintenance or a complex system diagnostic

this step-down transformer features a primary voltage range of 120V

it is the correct replacement for specific models under the Johnson Controls umbrella

it ensures seamless compatibility with existing furnace wiring harnesses and mounting brackets

Hydrolevel 727 Controller L99H008 Designed to create an airtightThe Hydrolevel 727 (Part Number 45 727) is a heavy duty 120Vac high water limit and pump controller specifically engineered for precise liquid level management in hydronic and industrial systems. Designed with a solid state, no moving parts architecture, this tank level control eliminates common mechanical failure points such as sticking floats or worn out linkages. The 727 model functions as a pump up controller, activating your pump via SPDT