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Retrozone and Flexdamper are trademarks of Retrozone inc.

 Free Standard Shipping on Orders $25+ Continental USA only

  Shipping to Alaska, Hawaii, and International shipping to Canada extra. Please place the order and factory will advise of additional shipping amounts prior to shipping. 

Credit Cards will not be charged until shipping amounts are verified. 

 

Expedited shipping available. Please call for pricing. 

Three wire, power open, power close damper draws power only when opening or closing, unlike spring return dampers.  Use on all zone control applications, works on almost any brand of 24vac zone control panel using two position dampers.  

 

Heavy gauge steel with easy to replace 24VAC motor.   

 

Unlike most 3 wire dampers, the Durozone  DRD dampers can be used as a slave zone damper (connected directly to a thermostat) without the use of a relay. Requires 3 wires for operation.  This is an outstanding choice compared to 2 wire spring return dampers that must pull power, when energized, to overcome the spring.  “Normally open or close” does not apply to these dampers since no spring is involved-dampers use power only when moving. 


PLEASE NOTE:  These dampers are manufactured without polyurethane seals.  Seals can be provided upon request for customer installation.  Please put this in “notes” when you order. 


Support: Factory Installation Instructions

Looking for additional supplies? Check out our damper accessories.