Note the two images of the hose installed on a Triumph Spitfire The Leaking hose has been force fitted onto a Chinese made Aluminium Radiator The other picture is as fitted correctly using OEM parts
If you attempt to use this hose when connecting to the Aluminium Radiators as imported into NZ via Australia and China you risk failure of the hose.
The angle of connection for the top hose on those Aluminium Radiators is not correct they will strain the hose. It may subsequently leak and damage your engine.