Which type of hose ranges in size from 3 ½ inches and above?

Large-diameter hose is defined by its size, which typically ranges from 3 ½ inches in diameter and above. This type of hose is primarily used for supplying large volumes of water, making it essential for fire suppression operations, particularly during structure fires and in rural or wildland firefighting scenarios. Large-diameter hoses allow for efficient water flow, which enhances the firefighting efforts by delivering adequate water pressure and volume to the fire scene.

In contrast, small-diameter hoses are generally considered to be less than 2 ½ inches in diameter and are often used for attack lines in direct engagement with the fire. Medium-diameter hoses sit between the two, but do not fall within the size range specified in the question. The term "master" typically refers to a master stream appliance or operation, rather than a hose size classification. Therefore, understanding the characteristics and appropriate applications of large-diameter hoses highlights their critical role in effective fire suppression strategies.