Provides opening to behind the wall plumbing and items needing service. Easy to install. No framing required. Ideal for paneling, ducting, drywall, etc. Can be painted or wall papered. Requires no tools for installation just slide into opening. Packaging includes simple, easy to follow installation instructions and cut carton cases for an attractive display. 12" x 12" inside opening, 14" x 14" overall size. Import.