They were as stated, ribbing was smaller, but the overall size was exact.
Nice quality. Very pleasant customer service.
I had never used this company before. My employee had found the link online as we were desperate to find new lenses. The fact that they were cut to length was a huge help and a game changer. Got the order today put them in and they fit perfectly
Air Deflector for Wall Vent, Custom up to 22.25in.