The Maco Inline Espag With Mushrooms 20mm is suitable for both profiles with and without a euro groove and it can be used on Aluminium, Timber and PVCu window systems. It is ideal for windows that are in a non vulnerable location, that is, second floor or above that can not be accessed from the outside. To engage locking points, lift the window handle and can either be used with inline, left or right handed espag handles.
eBay