Phoenix, AZ – The 4100 Knox-Vault is the newest edition to the Knox Family of Rapid Entry Products. It was designed for those applications where a 3200 Series is too small yet the 4400 Series is too large. Available in both single and dual lock configurations as well as recess and surface mounted models; this vault also has an optional holder for a FDC Keywrench and access cards allowing departments to keep a Knox keywrench on site. This new UL1037 listed box joins our product line of long lasting durable products that fire departments can rely on. For more information, visit the Knox Company website at www.knoxbox.com or call 800-552-5669.