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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
Pressure (Pa) - 503Pa
Adjustable Full spectrum
• Improves root development
The 40 series features just 4 small square pots
Use at 1:5 ratio for best results
20x25x4 (3 5/8) Pleated MERV 8 Air Filters 2 Pack food-storage Pressure (Pa) - 503PaImportant 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 20x25x4 filter
US$ 7557.38
US$ 12649.88
