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Sheet metal industry directory and buyers guide of manufacturers/fabricators of a variety of HVAC sheet metal products and tools as well as air conditioners.
At Rossi dampers, our mission is to eliminate wingnut dampers - which rattle loose and throw off the air balance. Our patented positive-locking damper handle (regulator) uses a spring loaded locking mechanism which ensures that the damper blade remains in position and never rattles loose. With Rossi dampers, you can be positive that your air balance stays balanced forever.