18x22x1 (17.5 x 21.5) Accumulair Diamond 1-Inch Filter (MERV 13) (4 Pack)
Accumulair Diamond 1-Inch Filter works well. The price isn't bad either. Keeps your air clean which is the whole point and it's free of allergens
Price is fair for the amount of work it does to keep your air clean and free of allergens! We have 2 dogs and this really helps.
We buy these once a month to change our filters from our house so we won't breath dirty air when we turn the heater or a/c on.
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