The Big Dog Door is the only two-way dog door on the market with "special" heavy-duty spring loaded hinges that provide a positive weather seal! When your dog goes "out" the door, the inner clear plexiglass panel and the outer welded aluminum frame move. When your dog goes in the door, the welded aluminum outer frame stays stationary and only the inner clear plexiglass panel moves. Made from aluminum, steel and sheet acrylic. Weather tight, chew-proof, indestructible! Requires a 16.5" x 25.5" opening. Frame is 28" x 18". Fits dogs 200+ lbs!
Proudly made in the United States!