The Raypak 009554F Limit Switch is a safety device designed to protect HVAC systems by monitoring and controlling the temperature. With a temperature range of 40°F to 180°F, this manual changeover switch ensures that the system operates within safe limits by cutting off power when temperatures exceed set thresholds, preventing overheating or potential damage. Operating at 24V, it is c... https://www.usapoolshop.com/009554f-raypak-limit-switch-m-r-40-f-180-f