|  3-flap system offers protection from extreme heat cold drafts insects or driving rain. Maximum energy efficiency is 3.5 times higher than our single-flap pet doors. Color: White. Snap-on weather cover for added insulation. Fits door thickness 1.5 x 2 . Dimensions - 10 5/8 x 15.125 . Flap Opening - 8.125 x 11.75 . Great for pets up to 40lbs. Durable plastic frame.
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