18x24x1 MERV 13 Pleated Air Filter 6PK - 17.375x23.375x.75 - Actual Size UV Bulbs Polypropylene non-woven pre-filtration media and

Polypropylene non-woven pre-filtration media and will operate effectively in most installations without pre-filtration

Grooved for increased surface area

Flow Rate: 1 gpm

Body Material: Type 303 stainless steel or brass

Actual Size: 12 inches (length) x 2 1/4 inches (diameter)

18x24x1 MERV 13 Pleated Air Filter 6PK - 17.375x23.375x.75 - Actual Size UV Bulbs Polypropylene non-woven pre-filtration media and18x24x1 MERV 13 Air Filter Box of 6 Actual Size of Filter: 17 3 8 x 23 3 8 x Air filters are ranked in a minimum efficiency rating value (MERV) system. The higher the MERV rating, the better the filter can filter out all airborne particulates. Since we are constantly trying to improve indoor air quality, it only makes sense that we would offer air conditioner filter MERV 13. 18x24x1 MERV 13 filters are right on the cusp of being classified as medium