Air hose coupling is named Universal couplings as well that mainly applied to industrial hose, water transport, and mining machines. There are 2 air hose fittings types we produce, which are European air coupling (DIN3489) and Chicago air coupling (USA type). Materials are mainly using carbon steel, malleable iron, and stainless steel. In order to easier connect and disconnect, Union air hose fittings connected by two claws or multi claws. In order to meet your needs, full range sizes are available in Union. If interested in Union air hose fittings, please be free to contact us to get more information details.
