12 Pack of 16x25x1 MERV 13 Pleated Air Filters for AC & Furnace by Glasfloss.   Actual Size: 15-1/2 x 24-1/2 x 7/8   ●   Filtration Rating:  MERV 13.  Comparable to 3M/Filtrete MPR rating 1900 to 2200, or Honeywell FPR rating 10.   ●   Protects from pollen, dirt, dust, pet dander and virus carriers, smoke, smog, lead dust, oil smoke and micro allergens.   ●      ●   The Glasfloss Z-Line Series MR-13 pleated air filter features the latest in media technology to achieve MERV 13 while maintaining low pressure drop and good service life.  The new Z-Line Series MR-13 pleat is optimized for “LEED” compliance in new and existing buildings as well as providing a cost-effective upgrade from lower efficiency pleated filters for a variety of commercial and industrial applications.  The Z-Line Series MR-13 pleat is available in many standard face dimensions in 1”, 2″ and 4″ depths.