Specifications:Cut Out Width: 54.5CMCut Out Length: 114.5CMOverall External Window Width: 60CMOverall External Window Length: 150CMExternal Window Pane Width: 50CMExternal Window Pane Length: 139CMOverall Internal Window Width: 61CMOverall Internal Window Length: 149CMMotorhome Window ReplacementIf you own a caravan, motorhome, camper van or horse box and would like to fit a complete window kit, look no further. Our window is easy to install which makes it perfect for DIY enthusiasts and professional window fitters. It's supplied in two pieces, one for the exterior and one for the interior. The exterior has an aluminium frame, stainless steel supports and features grey tinted double acrylic glazing; whilst the interior is white cream with integrated roller blind and fly screen, which can be adjusted. For added safety there are multiple flip locks to prevent the window being opened from the outside. It's ideal for new vehicles or retro fitting onto older vehicles. How To InstallScrew interior and exterior window frames together from inside the vehicle. This will clamp the interior and exterior window frames to the wall of the vehicle. The interior cassette will then fit to the interior window frame.Create a water tight seal by applying a sealant around the outer frame.If in doubt, always seek professional assistance.Please ensure measurements will suit your requirements.