Description This non-symmetrical quick connection coupling with a male and female part connects to hoses. It is used only in delivery operations. What is a coupling? Couplings are sets of connection devices that interconnect to additional lengths of fire hose, adapters and other firefighting appliances. Usually made of stainless steel or aluminium, couplings are available in a variety of types and sizes. CP030 Nominal Size: 65mm Hose Tail Size: 65mm Weight: 0.98kg Different sizes and specs: CP025 Nominal Size: 65mm Hose Tail Size: 50mm Weight: 0.96kg CP020 Nominal Size: 65mm Hose Tail Size: 44mm Weight: 1kg CP015 Nominal Size: 65mm Hose Tail Size: 38mm Weight: 0.95kg