Features: Ensure comfort with 520820 Circuit Board, direct replacement for Suburban Campers Furnace control modules, including part numbers 520871, 520814, and 33550L. This 12VDC Water Heater Control Module Board features fan control for efficient temperature regulation, from PCB material for long reliability. for enthusiasts and professional looking to maintain or upgrade their Campers's furnace system with ease and precision. Perfect for use in various recreational vehicles, this control board is designed to keep your living space cozy during adventurous road trips and outdoor excursions. With commitment to quality automotive parts, this circuit board represents innovation and dependability for a seamless integration into your heating system. Specifications: Material: PCB Size:12x8x6cm Package Includes: 1PC Furnace Control Board note: Please allow 0-1cm error due to manual measurement. makes sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!