Air Conditioner - Standard Mount
Some Room Air Conditioners require "standard mounting". This is just the opposite from EZ-mount in that it requires the normal framework around the case to hold it in the window but panels must be cut to size to fit the sides. EZ-mounts are self-supporting by the framework. Pull-out curtains are furnished to fill the sides.
For Slide-Aire models (NLA), there is a cut-to-fit piece furnished for the space above the unit only. Any filling to be done on the sides must be done by the consumer or installer.