Hospital Grade. Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke.
Ideal for standard and residential commercial use
Designed to last 180 days. Replace regularly for optimum performance.
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Reviews for Emerson 20X21X5 MERV 13 Replacement Filter
A Verified Buyer is a user who has purchased the reviewed product through our store.
Just what I needed
It is very difficult to buy the decent filters for my furnace in Canada. It is almost impossible to find something above MERV 10 and of exactly the right size. Not to mention the insane price. Even my HVAC contractor installed the filters that were smaller than the opening, padding them on the sides with self-adhesive foam. This filter is just what I needed, fits the opening perfectly leaving no gaps. Will get back for more when the time comes to replace them.