When mounting the SureFlap Microchip Pet Door in a wall, the Pet Door Tunnel Extender can be used.

The pet door's current tunnel measures 7 cm in length.

The overall length of the tunnel is increased by 5 cm with each tunnel extender.

Any length of tunnel can be made by stacking tunnel extenders.

The SureFlap Microchip Pet Door is compatible with the Pet Door Tunnel Extender.

Installations on walls are possible using it.

Dimensions of the hole: 20.7 cm (W) x 23.4 cm (H).
Dimensions of the flap opening: 17.8 cm (W) x 17 cm (H).

Dimensions (Product): 22.5 x 19.5 x 6 cm approx.