Resideo TG510A1001 Thermostat Guard

Versaguard Universal Thermostat Guard, Clear Acrylic, Opaque Polystyrene Wallplate Color, 4 7/16" Inside Height, 4 7/16" Inside Width, 5 7/8" Outside Height, 5 7/8" Outside Width, 2 1/2" Outside Depth

TG510A1001 is the direct replacement for BB2001