That's a odd size you may have to fold a 16x35. Or get a green Hog hair type filter you can cut to fit and add some support in the center with ridged wire if needed.
If they don't have them in stock yo can also check wal-mart, home depot, and the local hardware store.
Lowes.com will show current store inventory
Nop
Most likely. Just call ahead and ask an associate
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