Upgrade your heating system with the Hydro Flame Sail Switch Kit ML, 31094. This essential component ensures reliable operation of your furnace by detecting airflow and activating the burner when needed. Designed for easy installation, the kit includes all necessary hardware and clear instructions, making it perfect for DIY enthusiasts. Built for durability, it withstands the rigors of high-temperature environments, ensuring long-lasting performance. Whether you're maintaining an RV or a boat, this sail switch kit is a must-have for efficient heating. Keep your space warm and cozy with this reliable solution!