The product is an OEM LENNOX 39370B001 transformer specifically designed for HVAC systems. This transformer is manufactured by LENNOX, a well-known brand in the HVAC industry, ensuring high quality and reliability. As a USA seller offering free shipping, customers can trust in the authenticity and efficiency of this product. Perfect for businesses and professionals in the HVAC and refrigeration industry, this transformer is a crucial component to keep systems running smoothly and effectively.