18x20x1 air filters for residential filtration or industrial air filtration needs.
18x20x1 pleated filter, MERV 8, manufactured by Quality Filters Exact dimensions: 17-1/2" x 19-1/2” x 3/4” High Capacity filter at the standard capacity price. 16 pleats per linear foot for lower resistance Low resistance allows more efficient heating/cooling Made in the USA, in Robertsdale, AL 18x20x1 is also available in MERV 11 and MERV 13...
18x20x1 pleated air filters, MERV 11 Exact size: 17-1/2" x 19-1/2” x 3/4” Captures smaller particles than MERV8 for improved air quality 18 pleats per linear foot for lower resistance/increased efficiency Performance compares to brand name filters at much lower prices. Made in the USA, by Quality Filters, Inc in Robertsdale, AL 18x20x1 is also...
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