...in the 19th century, and now they are utilized in the US and the majority of European countries for fire services. Storz couplings are commonly used due to the fact that they are more durable and the hose can be attached faster to the hydrant because a Storz coupling does not have a screw thread. Modern-day pumps and hoses rarely use such connectors, they have a usual thread instead. In such cases, hydrant adapters are utilized. They attach a pump to the hydrant, and the pump in its turn is connected to a fire hose. Mega Depot offers a great selection of adapters as well as covers and supplementary parts. Shop with us!