We offer components and replacement parts, with an inventory of over 5,000 products from the most recognized names in the industry: Ruud/ Rheem, ADP, Honeywell, , Packard, Crown, Grundfos, Caleffi and more. Our technical knowledge and unbeatable service ensure you can find exactly what you need, and get it quickly. There are pictures of corroded coils from several manufacturers (Carrier, Trane, Goodman, ADP, Rheem, Supperior, etc.). It seems everybody in the industry has had coil failures due to corrosion. The corrosion is created by corrosive agents inside the house and not by manufacturing defects.