|Manufacturer||Norton Door Closers|
Norton 8501 Door Closer, also known as the Norton 8501 Omni Door Closer, or 8501BF Door Closer.
We sometimes find 3301/3501 and 8301/8501 on the inside of the cover, along with the suffix BF (barrier free).
This Norton 8501 replaces the 8501BF. This newer model now meets the ADA Barrier Free requirements.