What type of hose can be used for both attack and supply?

The choice of a 2.5-inch hose as a type that can be used for both attack and supply is correct because this size offers a versatile balance of handling and flow capabilities. The 2.5-inch hose is often utilized for fire suppression in attack operations due to its ability to deliver a substantial amount of water while still being manageable for firefighters in active scenarios.

Additionally, it can also serve as a supply line to feed larger attack hoses or to provide water from a hydrant or other source to the fire apparatus. This dual functionality makes the 2.5-inch hose a common choice in many fire department operations, as it can meet various needs in both offensive and defensive firefighting strategies effectively. The size is large enough to support significant flow rates while still allowing firefighters to drag and maneuver the hose on the fire ground.