BRAND NEW! Wall Dog Door indoor/outdoor

Let pets let themselves outside with this 3-flap pet door. Designed for walls, this large doggie door has outside dimensions of 18.1” x 11.2” and a flap opening of 10.2” x 15.6”. It fits walls 4.1" to 7.1" thick and features an all-metal frame, metal closing panel, and telescoping tunnel. Suitable for pets up to 100 lbs. Brand new in the original box. Bought the wrong size.