Boo! That looks like the inner hose to me. I had a quick look at the febi/blueprint catalogue and the correct one should have a banjo fitting on the caliper end.
Yours is actually the same as the picture in the listing, but I usually ignore these as many sellers use a generic picture. I would return it, tell the seller that they have sent the wrong one, or their listing is wrong. Even if you needed one, I think you can buy the inner one for about £7-£8.
They shouldn't be able to go far wrong, there's only 4 hoses on the back - two inner axle hoses, and two outer caliper hoses.
I think the pic attached is the one you are looking for. To be honest, as it's a nice banjo fitting and not the usual male nipple, you shouldn't have any problem removing the hose from the caliper at all. If the existing hose is in good shape, just get a couple of new 10mm copper washers, or anneal the old ones.