Attack Hose 1
Attack Hose 1 : (Attack Line) A use classification of a fire fighting hose connected to output of a pump or other pressure source (e. g. , gravity). Firehose used to apply water or other fire fighting agent directly to a fire or burning substance. Typically of 21?2 inches (64 mm) diameter or less in the United States. Historically 1. 5 inch hose was the primary initial attack line but has been supplanted in most of the US by 1. 75-inch-diameter (44 mm) hose that carries 175 gallons per minute. Two-inch hose is available as an option
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