PetSafe Wall Entry Aluminum Pet Door

Imagine a pet door installed behind a couch or in a utility room. The Wall Entry Door can be installed in interior or exterior walls or doors 4-3/4" to 7-1/4" thick, including siding, stucco, and even brick. Add an extension tunnel for deeper walls. This pet door features 2 flaps, one in the inner frame and one in the outer frame, for improved energy efficiency. Double-flap system insulates for energy efficiency Aluminum frame with durable plastic telescoping tunnel Easy, do-it-yourself, flexible installation in almost any wall Slide-in closing panel included; additional closing panel (sold separately) can be used for added insulation. Small Up to 15 lbs Medium Up to 40 lbs Large Up to 100 lbs California Residents: View Proposition 65 Warning