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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
*A control unit and reservoir (sold separately) are required to use this expansion pack
as it tolerates higher temperatures and lower humidities than P
has a built in cool tube for maximum airflow and cooling capabilities
lush white root development and will maximize your germination and cloning success rate for up to 14 seeds or clones
Press gently around stem
20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Sea Green Hydro *A control unit and reservoirImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,
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