I changed the window gaskets in my Boler
but the replacements suggested here didn't work well, as the 1/4 x 1/4 gasket known as
AS-1488 is too big on the fiberglass wall space and also is too short to cover the painted edge like the previous gasket did, and so after having the thing painted and the window masked, when that was removed the new gasket didn't cover the edge past the taped area.
I reordered AS-1179 and I'm posting here so if anyone else is trying this, they don't pay $150 for nothing.
(see how the attached image shows the 1179 is longer and covers more wall edge)