Does this unit include the internal check valve

This 18-inch germicidal bulb is engineered for seamless compatibility with Field Controls UV-18 and UV-18X duct-mounted units

and corrosion-resistant seal for the electrical components

the included natural gas to LP conversion kit and 3/4" x 1/2" reducer bushings provide the necessary flexibility for varying field requirements

Aaon P4848KIT Inducer Assembly 326058-755 Does this unit include theThe Aaon P4848KIT Inducer Assembly is a vital OEM replacement kit designed to restore peak performance to your HVAC system. This 230V combustion motor kit is engineered specifically for Aaon rooftop units and furnaces, ensuring a seamless fit and reliable operation. As a critical component of the heating cycle, the inducer assembly creates the necessary draft to pull fresh air into the burner and safely exhaust combustion byproducts. By replacing a