Precision Flow Control: The 2

Common culprits include moisture buildup in the sensing lines (often seen in high-efficiency 90%+ condensing furnaces)

Rugged mechanical life: Rated for a minimum of 10 million cycles

Designed for seamless integration with Erie PopTop actuators

Does this unit include the internal orifice

Schneider Electric (Barber Colman) AT-211 Shield Els PW 17895 Precision Flow Control: The 2The Schneider Electric (Barber Colman) AT 211 Outdoor Bulb Shield is a critical hardware component designed for the rugged protection of remote sensing bulbs in demanding external environments. Measuring 2 x 11 3 4 inches, this aluminum bulb shield provides a robust mechanical barrier against physical impact, direct solar radiation, and corrosive atmospheric elements. Engineered specifically for HVAC outdoor sensor protection, the AT 211 shield