Atrium sliding window tandem brass roller

Hello,

I don't recognize this roller at first glance but I'm going to have one of our senior experts take a look and see if they could recommend a replacement for you. Written out dimensions would also help them narrow down your replacement options. 

We'll reach out as soon as more information is available. Thank you!

We have been told that the Atrium window company discontinued your roller back in 2008. They did not offer a replacement, however, we found the 87-164 that might work for your window. Take a look and compare our dimensions to yours. Thanks for posting!