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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Total Harmonic Distortion (THD) <10% at 100% output
Has no maximum number of spray applications per season
• High holding capacity
The only difference between the two is the motor output
this mix should be treated like an inert media
16x20x4 (3 5/8) Pleated MERV 12 Air Filters 2 Pack microbes Total Harmonic Distortion (THD) <10%Important Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 16x20x4 filter
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