Features:

• 22-gauge galvanized steel casing.
• Mechanically sealed, low-leakage construction.
• Readily installed into existing ductwork with minimal modification.
• 3-beaded inlet connection tube for added rigidity and secure flex duct connections.
• Externally accessible metal inlet flow sensor with extra balancing taps.
• 20 gauge galvanized control mounting plate and enclosure.
• Damper constructed of double layer, 18-gauge galvanized steel with sandwiched flexible gasket fastened to provide a tight seal (<1% at 3.0" w.c.).
• Beaded inlet and discharge for added rigidity aid in secure flex duct connections.

The Retro Air Terminal is a round retrofit air terminal that can be used to achieve zone control in low-pressure single duct or multi-zone systems. The RAT-XX is installed in the branch duct before the diffusers supplying the zone to be controlled. Any single duct pneumatic, electric, or electronic control sequence can be used to modulate the RAT-XX Retro Air Terminal to vary the supply air to the zone. The RAT-XX also contains a multi-quadrant, averaging flow sensor for highly accurate (+/-5%) flow reading with varying inlet duct configurations after certified balancing of the air terminal unit.