Pella window weather stripping appoximately 1980 vintage

Question

I have about 40 casement windows needing weather seals. the original is pressed into a kerf directly adjacent to the metal window frame. It measures 1/2" inch.... 5/16" press in kerf and 3/16" hollow window seal. By 5/16" wide

Bob · Accepted Answer

This might be a bubble seal like our 58-114 or 58-053, but the only way to know is to remove a sample and compare its end profile to these options. See the video below for details.