I have a intertherm furnace model#mmha-056aahr-05,I got the same size filters to replace the old,but man they are tight,they seem to be to large.The old are bent and sqished.the size I have are 15x20x1.Can anyone help with the proper size.Do they make a 14x19x3/4.. Thanks:confused:

Is this in a mobile home? If so you are supposed to have a low restriction foam filter.