Editing Fire hose (section)

===Future===
The trend in fire hose construction over the last 20 years has been to use lighter, stronger, lower maintenance materials.

This trend is expected to continue in the future as new materials and manufacturing methods evolve. One result of this trend has been the introduction of lightweight supply hoses in diameters never possible before. Hoses up to {{convert|12|in|cm|1|abbr=on}} in diameter with pressure ratings up to {{convert|150|psi|bar kPa|sigfig=3|abbr=on}} are now available. These hoses are expected to find applications in large-scale industrial [[firefighting]], as well as in disaster relief efforts and military operations.<ref name=FireHose/>

Fire hoses come in a variety of diameters. Lightweight, single-jacket construction, {{frac|3|4}}, 1, and {{frac|1|1|2}}&nbsp;inch diameter hose lines are commonly used in [[wildfire suppression]] applications. Heavy duty double, double-jacket, {{frac|1|1|2}}, {{frac|1|3|4}}, 2, {{frac|2|1|2}}, and on occasion 3-inch lines are used for structural applications. Supply lines, used to supply [[firefighting apparatus]] with water, are frequently found in {{frac|3|1|2}}, 4, {{frac|4|1|2}}, 5 and 6-inch diameters.

There are several systems available for repairing holes in fire hoses, the most common being the [[Stenor Merlin]], which offer patching materials for Type 1, 2, and 3 hoses. The patches come in two different sizes and two different colours (red and yellow). The patches are [[Vulcanization|vulcanised]] onto the hose and usually last the lifetime of the hose.