Germany water coupling have two claws that lock together, when the coupling is pushed and turned. The interal lug distance is 40 mm for all the size, which make it easy to connect the hose in different connections, without any other reducer coupling.
Germany water couplings are widely used in agricultural, gardening and emergency for transfering low pressure water and other liquids.
1.Stainless steel AISI 316
3.Stainless steel AISI304 on special demand
1.As standard the coupling in SS have a green Viton sealing ring
2.The brass coupling is with a black NBR sealing ring.