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The Gecko 9920-401397 is a temperature and high-limit dual sensor designed for various applications. This sensor features a three-eighths inch bulb diameter and a cable length of forty-eight inches. It is essential for monitoring temperature and ensuring safety in systems such as pool heaters and spas.
It monitors temperatures reliably in pool and spa setups.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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