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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
Models TTT 1900
Once heat is released into your room
all in one mobile unit
OxiPhos targets Pythium
20x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack biological fertilizer Models TTT 1900Important 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 20x20x4 filter
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