The Techtrol Smart Pet aluminum pet door is constructed of aluminum for durability. These doors seal on all sides with a replaceable double wiper gasket creating a good weather seal. The Smartpet aluminum pet door can be installed in doors and also in walls. The flap closes with gravity, so this door may not close completely every time a pet uses it. These doors are one of the few dog doors on the market that can be called chew proof. In extremely abusive situations the weather gasket seal can be replaced. The door mount can fit doors up to 1 ¾ inches thick and the wall mount with the wall kit can fit walls up to 11 inches in thickness. The door is designed to close quietly due to its concealed double acting hinge. The Techtrol aluminum pet door locks using an internal locking arm that is engaged by a key that is included with the door. This door carries a limited lifetime warranty.
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