Hayward THERMOSTAT KNOB CZ & HM2

A Hayward Thermostat Knob for CZ and HM2 models is a simple but important control component used on compatible Hayward gas heaters, allowing the user to adjust water temperature with clear, tactile feedback. Its molded design fits securely onto the heater’s thermostat shaft, providing smooth rotation and easy visibility of temperature settings. Made from durable, heat‑ and chemical‑resistant plastic, it withstands outdoor exposure, chlorinated environments, and repeated use without deforming or fading. The knob’s shape is designed for comfortable grip even when wet, supporting reliable day‑to‑day operation. Despite its sturdy construction, it remains very lightweight, with an estimated weight of about 0.05–0.1 pounds, depending on the specific version