Storz couplings are ready assembled units used for connecting fittings to hoses. In the areas of fire fighting, water supply, agriculture, food, pharmaceutical and general industry, the couplings are being used to transport various liquids such as drinking water and water used for fire fighting. Storz fittings can also be used for abrasive products such as: granules, powder, pellet storage, wood chips and even natural fertilizers. The couplings are mainly made out of aluminum, brass and stainless steel. The seals can be supplied in various different materials; depending on the application of the coupling.