High PerformanceA sail switch is a device that is commonly used in HVAC systems to detect airflow. The purpose of a sail switch is to ensure that there is proper airflow in the system, and if there isn't, it will shut down the system to prevent damage. The 232261 sail switch is a low airflow switch, direct replacement, used to keep normal running of your RV furnaces.Perfect Compatibility2x 232261 sail switch replacement. The sail switch is designed to compatible with Suburban SF series and SF-20/25/30/35/42, SF-20F/25F/30F/35F/42F, SH-42, 42F RV Furnace. Please make sure the correct model before purchasing.Premium QualityMade of high quality steel and long-lasting plastic, professional manufacture. Thicken material, more durable. Features good rust-restance, high temperature resistance, good fitment.Easy InstallationEasy to install. For safety reason, it is recommended to consult a professional technician for installation and maintenance. Please remember to disconnect the appliance and turn off the gas before installing or servicing.Product SpecificationPower Rating: 0.1A, 125-250V AC, 0.5A, 30V DC. Switch Dimensions: 5/8 x 1-1/8. Arm Length: 3-1/8. Package: 2-Pack.