Review on Professional Grade Zoning Round Zone Damper by Anthony Heinrichs

I chose these because they looked very high quality and they didn't disappoint. They are durable and easy to install. I like that they open and close with force and the stops are fully adjustable. I also like that you can disengage the clutch and manually adjust the damper, which makes calibrating zones easier. Once I figured it out I just plugged in the power and it was done. Now the system ensures perfect temperature control in all rooms, which used to be terrible. I highly recommend this product and this company in this regard. They cost a little more than Honeywell's, but I think the extra cost was worth it.