Any number of these paintable 50mm / 5cm / 2" cat flap wall liners may be added to the following products to enable easy wall installation for the following products:

Compatible Cat Flaps:

• Cat Mate Large Cat Flap 221
• Cat Mate Large Glass Fitting Cat Flap 357

Each cat flap wall liner is 50mm / 5cm / 2" long, so if you need a 20cm tunnel, you'd need four.

These pet door accessories can be cut down. For instance, if you need a 22cm tunnel, you can buy five and cut one down by 3cm.

We advise that you add a thin bead of sealant between each liner to create a moisture-resistant tunnel and wrap around the outside of the joint with duct tape. This will mean that the tunnel stays solid and is much easier to handle.