The PetSafe Wall Entry Extension Tunnel is designed for partitions greater than 7 1/4″ thick. Small wall entry doorways may be prolonged as much as 10 3/4″ thick, whereas medium and huge may be prolonged as much as 12″.
Appropriate with the next PetSafe Pet Doorways: Plastic Wall Entry Door (mannequin # ZPA00-16203) ; Aluminum Wall Entry Door (mannequin # PPA11-10917)
Extends Wall Entry Doorways from 7 1/4 in to 12 in thick
Tunnel may be minimize shorter to accommodate partitions 7 1/4 in to eight 1/4 in thick
Package deal dimensions: 33.07 in L X 6.57 in W X 1.81 in H