Master Flow Hybrid Control Module with Thermostat for PRHYBRID Series Vents, Silver SLRT1

The GAF Master Flow Hybrid Control Module with adjustable thermostat converts GAF Master Flow PGSOLAR or PRSOLAR "Green Machine" series solar powered fan into a Dual-powered (Solar/Electric) Hybrid model. Setting the adjustable thermostat enables the fan to run at night (without the sun), helping reduce the likelihood of damaging heat from accumulating in your attic. It is pre-wired with simple molded plugs for easy installation. Color: Silver.