I suspect all the hoses are a similar diameter. They will have a clamp to hold the hose on the the base of the pump. Last time I replaced a hose was a generic brand hose on a 1990's Silca pump with no problems.

I've had one of those, no, it would not stay on the valve on its own, so it was no better than the classic type of silca 'crack pipe'.
What I finally bought and works wonderfully, is:

http://www.trisports.com/...ng-presta-chuck.html

You can leave it on your pump and use it for any wheel, disc wheel or not.

Cool thanks.