This heavy-duty single element control integrates an automatic cycling thermostat and a manual reset high limit (ECO) within a compact 3-3/4 inch housing

What is the connection size for this model

Durable Construction: Features a black painted steel case and polycarbonate lens to withstand job site rigors

to ensure a correct fit

White Rodgers 775-1 Control This heavy-duty single element controlThe White Rodgers 775 1 is a professional grade attic fan control designed to regulate power to ventilation systems based on ambient temperature. Engineered for line voltage applications, this thermostat operates with a 60 120F temperature range and a fixed 10F differential, ensuring efficient heat dissipation without excessive motor cycling. As a direct replacement for F535 models, the 775 1 provides a seamless upgrade path for legacy installations.