|Material||All Steel, Overlapping Step Down Rings|
|Air Diffusion Pattern||360 Degrees|
|Compatible With||Butterfly Dampers|
|For Use With||Mfr. No. 3CC51, 1800B8|
Average Product Rating: 5based on 1 reviews
Very NiceTuesday, November 29, 2011
I replaced old rusty diffusers. These are slightly smaller in diameter than the originals but work. Look nice and shiny. Hope they stay that way!