A single-jacket fire hose of 3 in. (90 mm) diameter or larger used to move large volumes of water at low pressure and manufactured prior to January 1987 to meet the requirements of the 1979 and previous editions of NFPA 1961, Standard on Fire Hose
NFPA 1962 Standard for the Inspection, Care, and Use of Fire Hose, Couplings, and Nozzles and the Service Testing of Fire Hose, 2008 ed. (Std: Insp, Care and Use of Fr Hose, Couplings, and Nozzles and the Srvc Tst of Fr Hose - Amer) {424 NFC}