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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
Heavy duty magnetically-driven centrifugal pump
Durable black polypropylene sheath with belt clip is included
Interwoven vertical supports for extra side support
To use Hydrofarm's CO2 Flow Rate Calculator
Rely on Active Air non-insulated air ducting with your reflectors
20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 4 Pack commercial-lighting-fixtures Heavy duty magnetically-driven centrifugal pumpImportant 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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