Honeywell RRD8 8" Retrofit Round Damper. The RRD is a round damper that is easily inserted into rigid round ducts for retrofit zoning in forced air heating and cooling systems. This power open, power closed damper actuator is available in four sizes for 5" , 6" , 7" , and 8" ducts.
4.5 out of 5 rating is our rating for PlumbersStock, we got that rating because we have lots of experience and great people with expertise in plumbing. BUT WE WANT YOUR HELP. This product doesn't have any reviews yet, and we don't want to write our own reviews. It is more valuable to us that the customers get to share their experience with our products. Please, if you have any experience with this product, take a moment to share and help someone else who is trying to make a decision. Thank you!