New answers tagged central-air
You can cut the electrostatic filters (like Filtrete) down to size without altering their effectiveness. Just buy a size that is larger and cut it down with tin snips and/or scissors. When I do it (and I have done it many times) I use painter's masking tape to "seal" the cut edge. If you install it in the plenum of the forced-air unit, make sure you "seal" ...
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