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

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

This Parker Hannifin genuine OEM component features a molded

it is compatible with a wide range of refrigerants including R-22

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

Hydrolevel 727 Controller L99H008 Whether you are performing routineThe 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