There are 6 windows, all repository mapped to the base game Mauritania door and should work in all game configurations.
Prices, polys, etc
Single and centred "kitchen" window - 120 simoleons, 482 polys, 2 subsets
Single and centred "crossbrace" window - 120 simoleons, 522 polys, 2 subsets
Privacy window - 65 simoleons, 386 polys, 2 subsets
Double window - 120 simoleons, 780 polys, 2 subsets
Colour Options and Credits
If you have Lunie's CEP fix then the top glass can be recoloured to clear.
Recolours used in the upload by Aquilegia