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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
Day and night setpoints adjustable from 20% to 90%
For use on trees
Storage Note: PFR-97 must be kept refrigerated for best results
This 24” pleated
evaluated all the fixtures on the market
20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack bloom nutrients Day and night setpoints adjustableImportant 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 20x25x4 filter
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