About This

• Extends the tunnel of the SureFlap Microchip PET DOOR for wall installations
• Adds 2" in length to the 2¾" length of the tunnel on the SureFlap Microchip Pet Door
• Multiple tunnel extenders can be stacked together to create a tunnel of any length
• Used for the PET DOOR size NOT the Cat Door/Flap

Overview

• Size : 1 Count (Pack of 1)
• Brand : SureFlap
• Color : White
• Material : Plastic
• Mattress Thickness : 50 Millimeters