HK42FZ034 – Furnace Control Circuit Board Fits Carrier Bryant. 2 x 10 x 10 inches; 1.06 Pounds. This is a brand new ClimaTek Furnace Control Circuit Board. This ClimaTek Part Directly Replaces Part # HK42FZ034. Top Quality ClimaTek Part, Built to Last! Works with Carrier Bryant and more! We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.