William is right!
Although each time someone tells us that they have their filters we have a better idea.
Postage from the UK to the States seems to take 4-8 days. We can send orders via Fed-Ex if you have an account - and we can get filters to you by any means you suggest. Just let us know. Remember standard worldwide postage is included in our price.
I would like to point out that I am away in Bali from 3-18th September, and more importantly, Peter, who handles the orders is away in Bali-Komodo from 11-27th September. So we won't be able to send out orders during this time. So please get any urgent orders in to us before Peter goes away. We should have some spares with us, should you run in to either of us on our travels.