Glasfloss 12x27x1 - MERV 10 -Qty:6 - Furnace Air Filter - Made in USA (Actual Size: 11.5 x 26.5x7/8 inch)

The Z-Line filters are classified under UL 900 STD and must withstand 180 F temperature.. Performance Test: The Glasfloss heating or cooling Furnace Air Filters must meet or exceed ANSI/ASHRAE 52.2 test standards. Filter Media: Glasfloss Furnace Air Filter media is 100% Synthetic Fibers, manufactured and supplied by Kimberly-Clarke a trust worthy USA company, which offer less airflow resistance and will save you in energy cost. The ASHRAE highly recommend to use minimum MERV 10 rating at homes & offices to captures airborne particulates of 2.5 to 10 microns sizes. Better performance than MERV 8. Glasfloss 12x27x1 MERV 10 AC or HVAC Furnace Air Filter