I bought these really crappy windows that cost $500 a piece...read description?

They have these draining holes on each side inside them that water goes down. The person who tried to install them told me that there was “foam” under the draining holes and the foam makes it evaporate. There unfnished wood laminate. Theyr’e double hung and they tilt clean. Is there window that really have foam in there like that or was he just lieing? If not tell me the name of the windows. I can show pictures if you tell me how.