Lost End Cap - Help!

quarkrad809

I've lost an end cap off my front wheel. The wheel is a thru axle centre lock disc with a Powerwall R13 hub. I don't know if these things are very very specific to each hub or whether, to a degree, they are generic across a number of hub types. I'm wondering if it is possible to buy a non Powerwall end cap - are these things, to a degree, interchangeable? Any advice appreciated