The Zodiac R0022700 High-Limit Switch is a crucial safety component designed to monitor and protect HVAC systems from overheating. This high-limit switch is set to activate at a temperature of 135°F, ensuring that your equipment operates within safe thermal limits. Measuring 7.5" x 5.5" x 2", the switch is compact yet robust, making it easy to integrate into various HVAC setups. Funct... https://www.usapoolshop.com/r0022700-zodiac-high-limit-switch-135-f