The Storz hose coupling has no female or male ends, removing

the trouble of matching different ends. It is easily connected

or disconnected with a 120° rotation using the proper coupling

spanner.

It is used as the national standard of many different countries

such as Germany, China, Australia, etc. for hose fittings . In

Germany, the standard is known as DIN while in China, the

standard is known as GB.

While both standards look similar, the 1.5” and 2.5” versions

have different measurements. Only the 2.0” version can be used

interchangeably between the two national standards.

The Lug Size Of 2.5" Germany Storz Fire Hose Coupling : 81mm