Hayward THERMOSTAT BULB WELL ALL GAS

A Hayward Thermostat Bulb Well for all‑gas heater models is a protective housing designed to hold the thermostat sensing bulb securely within the heater’s water path, allowing the system to accurately monitor water temperature and regulate heating performance. By shielding the bulb from direct turbulence and ensuring consistent thermal contact, the well helps maintain stable temperature readings and reliable heater operation. It’s typically made from corrosion‑resistant metal to withstand chlorinated water, heat cycles, and long‑term outdoor exposure. Installation is straightforward, and the component is built for durability despite its compact size. The bulb well remains easy to handle, with an estimated weight of about 0.2–0.4 pounds, depending on the specific version