Review on Weller 7135W: High-Quality Replacement Tips for Weller/Ungar 8200-3 (2/pkg.) by Eric Chapman

They were made by Weller and appeared to be of good quality. When I ordered them they emailed me saying they were out of stock as expected. They told me they had ordered a new batch but would be about 3 weeks late and offered to cancel the order so I could order elsewhere. I told them it was ok to wait and they arrived in about 3 1/2 weeks. I appreciated the "chin up" in anticipation. They're hard to find except on Revain. I've ordered another set of these.