FA Cup FInal Tickets for non-members (I'm from Canada)

I'm going to be in London during the FA Cup final and was hoping to see the match live...Is it possible for a foreigner/non-member to get tickets? I was looking at the registration process on Arsenal.com but didn't see any information for non-members.

you have to be an arsenal member to buy tickets (dunno if f.a cup follows the same rule as premier league matches, i got mine from a friend who was a member) that being said there are always third party selling tickets though its very expensive but f.a cup final would be totally worth it