How do I cut and install it?

Measure your existing filter, mark the pad, and cut it to size with scissors or a utility knife. Slide it into the filter slot or frame, then rinse and dry it when it loads up.

How often should I wash it?

Rinse it with low-pressure water whenever it looks dusty, roughly every one to three months depending on your home. Let it dry completely before putting it back so moisture does not reach the blower.

Does it filter as well as a pleated filter?

No. Polyester pad media catches larger dust and lint but has less surface area and lower MERV-level capture than a pleated filter. It is a basic filter, not an allergy-grade one.

Is the pad really 1 inch thick?

The pad is listed as 1 inch but measures about 0.75 inch actual. Check the depth of your filter slot before relying on a snug fit.

Can I use it in any furnace or AC?

It is UL 900 Classified for HVAC systems and fits many brand-name units, but confirm your unit's required filter size and thickness first. Very restrictive slots may not hold a cut pad well.