SureFlap Pet Door Mounting Adaptor (Brown)
Required when installing the brown SureFlap Microchip Pet Door into glass or walls. A circular hole with a diameter of 294mm (min) to 320mm (max) is required for installation in glass, with the ideal size being 294mm. The total diameter of the mounting adaptor is 380mm. In wall installations, a mounting adaptor allows you to remove the cat flap more easily without damaging the wall.