This product can be found in: Cat Flaps: All | SureFlap Microchip Cat Flaps   Click Extra Product/Customer Images: product pic 1 product pic 2 Click to view video: video 1 UK Standard Delivery FREE on orders over £39* Available For Express Despatch Standard Despatch Cost + £2.99 This item is deliverable to most EU Countries From £7.99   Sureflap Mounting Adapter 55538 0 reviews | Login to review £12.99 The Sureflap Mounting Adapter is for use with the Sureflap Microchip Cat Flap. You should purchase this as an addition should you be fitting your cat flap into glass or a wall. It is also useful if you are replacing your older cat flap with the Sureflap and your cut out is larger than the actual Sureflap, as you can use this adapter to cover the additional space providing a seal to prevent against draughts and moisture. The maximum diameter that this will cover is 260mm. Use for holes ranging from 210-260mm.