What are the wrenches called that are used to tighten and loosen hose couplings?

Spanner wrenches are specifically designed for the purpose of tightening and loosening hose couplings. They typically feature an adjustable design or fixed prongs that fit into the notches found on the couplings, allowing firefighters to securely attach and detach hoses during operations. The use of spanner wrenches is essential for ensuring that hose connections are properly sealed to prevent leaks while also making it easier and safer to disconnect hoses when needed.

In the context of firefighting, spanner wrenches facilitate quick and efficient hose management, which is crucial during emergency situations. Having the right tool, such as a spanner wrench, for this task helps maintain effective water supply and pressure, and enhances operational efficiency on the scene.