The product is a 2021 paperback textbook titled “NFPA 54 ANSI Z223.1 National Fuel Gas Code 2021 Paperback” authored by Nfpa and published by National Fire Protection Association. It focuses on general education and reference, providing information in English on the subject area. This textbook serves as a valuable resource for those seeking to understand and comply with the NFPA 54 ANSI Z223.1 National Fuel Gas Code.