The Murphy by Enovation ESF Fuel Level Sender (05705668) is a high-quality product manufactured in the United States by Enovation Controls. This model is designed for use in heavy equipment and does not require any modifications. It is important to note that this product may contain components that can expose users to chemicals known to the State of California to cause cancer. For more information, please visit www.p65warnings.ca.gov. As a trusted brand in the industry, Enovation Controls ensures that this fuel level sender is reliable and efficient for various heavy equipment applications.