Weber Air Filter
 

What do the Weber users do for air filters? I just installed a Weber a couple months ago, so I'm a little new to this. I'm on the road right now, and noticed that my filter is pretty clogged with red sand from the desert.

No shops have them in stock. So I had to call a Napa in a town I'll be passing through a week from now, and have them order it. $20 + $8 shipping.

Is this basically just what you have to do, or what? I mean if I were home I'd just have it delivered to my house, but it's a pain on the road. I guess I'll carry an extra from now on...