This Laars wiring harness, officially known as the HARNESS WIRE PENN 200-400, is a crucial component for various heating systems. It is designed to facilitate the transfer of electrical power and signals between different parts of the system. The harness is made from high-quality materials that ensure durability and reliability in operation. It features multiple wires bundled together, which simplifies installation and maintenance processes. This product is compatible with specific models within the 200-400 range, making it a specialized replacement part for these systems. Its design adheres to industry standards, ensuring optimal performance and safety during use.