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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Gallons Per Hour: 660
It contains two beneficial fungi that deliver an improved range of pathogen control:
we are only introducing them in greater numbers than would normally be present
Use the Oakton pH tester with accurate ATC to get instant at-a-glance readings
16x20x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack Amendment Gallons Per Hour: 660Important 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