What feature do rocker lugs provide on hose couplings?

Rocker lugs on hose couplings are designed to enhance the grip and allow firefighters to connect and disconnect hoses more easily, especially in challenging conditions. These lugs often have a unique shape that can include rectangular extensions, which provide more surface area for hands to grasp. This design is particularly useful in high-stress situations where quick and firm manipulation of the couplings is crucial.

While it is important to understand the other features and characteristics of hose couplings, the defining feature of rocker lugs is their function in providing a better grip for connection and disconnection. In contrast, durability, hose size indication, or the overall shape of the coupling are separate aspects that do not specifically describe the operational function of rocker lugs.