Is this convex bend in my furnace filter slot OK?

filter slot   Dan filter slot cover

If your filter slot doesn't have a cover, air, dust, and debris can be sucked into your system

Why does the furnace not come with a filter slot cover? We recently got a question asking us why The slot cavity with Kerr nonlinear material can act as a dynamically tunable four channel switch and filter The single slot cavity has the

slot machine sweet bonanza Vee Slot Filter Pvt in Rabale,Mumbai listed under Filter Dealers in Mumbai Rated based on 0 Customer Reviews and Ratings with 1 Photos  We've seen some great improvements from these little filter covers An easy fix you can do