I just had a new Carrier Comfort 80 Oil Furnace - Model 58CLA (lowboy) installed. It requires two filters, each 12x20x1 (at least that is what is in the furnace now)
Yet, going to Lowes or Home Depot, I only see either 14x20x1 or 10x20x1. Any thoughts? Is the size I need rare?
Also, I'm considering purchasing an electronic air cleaner, any opinions on these?