Important Please see fitting instructions before installing into metal or uPVC doors, it is not possible to cut holes in to existing glas, single or double glazed units because the glass will be toughened glass, you must therefore take your cat flap to a glazing company who must reglaze the door cutting the required hole in the glass before its toughened, or remove the glass section and replace it with a new upvc panel.
We also have a larger range of cat flaps available please visit
www.catflaps.co.uk