What is the diameter of small diameter hoses used in firefighting?

The diameter of small diameter hoses used in firefighting typically ranges from 1 to 2 inches. This size is commonly utilized for various firefighting purposes, including attack lines for structural fires, protection lines, and for certain types of wildland firefighting where portability and maneuverability are crucial. Small diameter hoses are preferred in situations where the volume of water needed is manageable, and they are more user-friendly for firefighters to handle, especially in tight spaces or with limited personnel.

In contrast, hoses with larger diameters are generally used for different applications, such as supply lines or for supplying large volumes of water to a firefighting operation, which makes them less suitable for tasks where agility and ease of use are prioritized.