What function do those 2x longitudinal strips of foam on the frame do?
The parts fiche says it’s they’re “tabs for filter protection”. Not clear what that means.
I took mine off when I sandblasted and powder coated the frame. They were torn and dirty, but I kept them as patterns to make new ones. Do they need to be that open cell foam or will any foam do?
Thanks.
The parts fiche says it’s they’re “tabs for filter protection”. Not clear what that means.
I took mine off when I sandblasted and powder coated the frame. They were torn and dirty, but I kept them as patterns to make new ones. Do they need to be that open cell foam or will any foam do?
Thanks.