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Surplus Rectangular Dampers

In Stock and Ready to Ship!

PMB Mechanical Damper

Clearance

No Springs here! Get rid of troublesome 2 wire spring return dampers with these quality 3 wire dampers that use power only when moving-motors always stay cool, and backed by a 5 year warranty.


Don’t see the size you need? Click here to view all PMB options.

RZMMB Damper

Clearance

Ribbed for strength and extruded from lightweight aluminum, the sleek frame profile provides maximum strength without excessive reduction of free area inside the ductwork.


Don’t see the size you need? Click here to view all RZMMB options.


SD “Super Duty” 3085 Series Damper

Clearance


The 3085 Series Commercial Damper uses the same quality, multi-opposed blade aluminum housing as the 3150 Series, but features a Belimo 24vac LMB motor, Power Open / Power Close actuator with a 90 second design actuation time. Quality American built, all aluminum and stainless steel damper with a 20 year proven history, with commercial 1/2 inch drive shaft. Rattle-free nylon bushings and multiple opposed blade design makes this the “quiet” choice. .


Don’t see the size you need? Click here to view all SD3085 options.

SD “Super Duty” 3085 Series Damper

No Motor Included

Clearance


Have your own motors? 

The 3085 Series Commercial Dampers are available with no motors installed.  Whether you want to add motors later, or have your own motors,  now you can have our best-in-industry damper cans for your installation. These dampers feature the finest construction and parts in the industry, and will not crack, come apart, have blades fall off or leak through seams like lesser quality dampers.


Don’t see the size you need? 

Click here to view all SD3085 No Motor options.

3150 Series Damper

Obsolete

Clearance


OEM quality damper is sold nationwide under a major HVAC manufacturer's name and is our most popular rectangular damper. Used for zone control systems or slave zones into unoccupied areas, these dampers are all 24vac driven and can be connected directly to a thermostat for simple control of any room or office. Also works with any zone control system using a 2 position, 24vac damper. Constructed of all aluminum and stainless steel parts for long corrosion free operation, these dampers are tested to the industry standard 250,000 cycles of operation

Don’t see the size you need?

Click here to view the upgraded 3151 Dampers.

3151 Series Damper

Clearance

OEM quality damper is sold nationwide under a major HVAC manufacturer's name and is our most popular rectangular damper. Used for zone control systems or slave zones into unoccupied areas, these dampers are all 24vac driven and can be connected directly to a thermostat for simple control of any room or office. Also works with any zone control system using a 2 position, 24vac damper. Constructed of all aluminum and stainless steel parts for long corrosion free operation, these dampers are tested to the industry standard 250,000 cycles of operation

Don’t see the size you need?

Click here to view all 3151 options.