1. Introduction
This manual provides essential information for the proper installation and maintenance of your Cat Mate Elite Wall Liner, Model 308. This product is designed to extend the tunnel length of compatible Cat Mate pet doors when installing them through walls.
2. Product Overview
The Cat Mate Elite Wall Liner (Model 308) is a single section, 5cm (50mm / 2 inches) deep, designed to create a secure tunnel for your Cat Mate pet door when installed in a wall. Multiple sections can be combined to achieve the desired wall thickness.

Image 1: Cat Mate Elite Wall Liner (Model 308) - Angled View. This image displays the white plastic wall liner from an elevated, angled perspective, highlighting its rectangular shape and smooth finish.

Image 2: Cat Mate Elite Wall Liner (Model 308) - Top View. This image shows the wall liner from directly above, illustrating its internal dimensions and the interlocking design for connecting multiple units.
3. Compatibility
The Cat Mate Elite Wall Liner (Model 308) is compatible with the following Cat Mate pet door models:
- Cat Mate Elite Microchip Cat Flap with Timer Control (Ref. 355)
- Cat Mate Elite I.D. Disc Cat Flap with Timer Control (Ref. 305)
- Cat Mate Microchip Cat Flap (Ref. 360)
- Cat Mate Timer Control Cat Flap (Ref. 359)
- Cat Mate Rotary 4 Way Locking Cat Flap (Ref. 358)
Important Note: For certain installations, particularly through walls or glass panels, the Cat Mate Adapter Kit for Walls and Glass Panels (Ref. 361) may be required to ensure proper installation and a finished appearance. Please consult the instructions for your specific pet door model.
4. Safety Information
Always read all product packaging literature and product labels before use and installation to ensure safe and correct application.
5. Installation Instructions
The Cat Mate Elite Wall Liner is designed for straightforward installation to extend the tunnel of your compatible Cat Mate pet door.
5.1. Determining Required Length
Each liner section adds 5cm (2 inches) to the tunnel depth. Measure the thickness of your wall to determine how many liner sections are needed. You can combine multiple liners to achieve the desired tunnel length. Liners can also be trimmed to fit specific wall thicknesses if necessary.

Image 3: Cat Mate Elite Wall Liner in context. This image shows the product packaging alongside the wall liner itself, with an inset picture of a cat using a pet door installed in a wall, illustrating the liner's purpose.
5.2. Assembling Liners
The liner sections are designed to interlock. Align the sections and press them firmly together to create a continuous tunnel. Ensure a snug fit to prevent gaps.
5.3. Sealing for Moisture Resistance
For optimal performance and to prevent moisture ingress, it is recommended to apply a suitable sealant between individual liner sections and around the edges where the liner meets the wall. Additionally, duct tape can be applied to the exterior of the assembled tunnel for enhanced moisture resistance.
5.4. Integration with Pet Door
Once the desired tunnel length is assembled, integrate it with your Cat Mate pet door according to the specific instructions provided with your pet door model. Ensure all components are securely fastened.
6. Maintenance
The Cat Mate Elite Wall Liner requires minimal maintenance. To keep the liner clean, simply wipe it with a damp cloth. Avoid using abrasive cleaners that may damage the plastic material.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 308 |
| Brand | Cat Mate |
| Material | Plastic |
| Color | White |
| Individual Section Depth | 5cm (50mm / 2 inches) |
| Item Weight | 0.5 Pounds (approx. 8 ounces) |
| Product Dimensions (LxWxH) | 6.25 x 2.75 x 9 inches |
| UPC | 035368003080 |
8. Warranty and Support
8.1. Warranty
The Cat Mate Elite Wall Liner (Model 308) comes with a 3-year guarantee from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
8.2. Customer Support
For further assistance, troubleshooting, or warranty inquiries, please contact Cat Mate customer support. Refer to your product packaging or the official Cat Mate website for current contact information.





