A waste of money buying something like that when it is so easy to do it yourself.
Buy a cheapo caribina, the sort you can get from service stations for a key ring (doesn't need to be a mountain climbing one) and attach it to a belt of some description or a loop of webbing you can wear like a sash (That's the way I do it, I'm on the fat side and find belts tend to slip down uncomfortably).
Have your hose permanently attached to either belt or webbing, simply unclip your belt or slip off webbing when you wind in the hose.
I'll take a pic of mine and post it on here....
No way on earth would I pay £20 for something that is so easy to do yourself for a few pence.
Ian