14x20x1 MERV 13 Pleated Air Filter 6PK - 13.5x19.5x.75 - Actual Size Water Filters FAST Air Filters ) The end adapter is

) The end adapter is made of rubber

fiberglass filters

The Myron L EP10 0-10000 MS DS Conductivity Meter combines quality and functionality with durability for a lifetime of customer satisfaction

Outer Diameter: 4

14x20x1 MERV 13 Pleated Air Filter 6PK - 13.5x19.5x.75 - Actual Size Water Filters FAST Air Filters ) The end adapter is14x20x1 MERV 13 Air Filter Box of 6 Actual Size of Filter: 13 1 2 x 19 1 2 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. 14x20x1 MERV 13 filters are right on the cusp of being classified as medium