Hayward CHXTST1930 Thermostat Knob without Knob Replacement for Hayward H-Series Pool Heater
This thermostat knob without knob is designed to use with Hayward H-Series and H-Series Millivolt heater models H1501, H150P1, H2001, H200P1, H2501, H250P1, H100ID1, H100IDP1 and also compatible with H-Series CZ and HM2 models. Weighs 16 pounds.