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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
- 24" filter bed
The combination of these two horticultural substrates
Hortilux uses a glass that allows the UV light to pass through benefiting plant growth
Impeller blades
causing them to avoid treated plants
20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack tubing - 24" filter bedImportant 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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