Depends on what you want to filter on.
I don't think you can specify tablets only (are there Android desktop computers?).
Explore the page you pointed me to. It has links for examples and such for each feature that is filterable.
While it lets you filter on screen size (small,normal,large,xlarge), it does not seem to let you specify width/height in pixels.
Look at the AndroidManifest.xml file in the interpreter_android directory while you browse the developer page. That will help you figure out what you need.
If you are using the TGC AppGameKit on-line one-click apk creator, I don't know how you add features to the AndroidManifest.xml file they use to create the apk.
Cheers,
Ancient Lady
AGK Community Tester and AppGameKit Master