The Glasfloss Z-Line 500 AB (Air Bear) &
300 AB (Air Cub) are an ideal replacement option for
the Trion Air Bear and Air Cub filters. The ZLine
500 AB & 300 AB incorporates 100% synthetic fibers that are
thermally-bonded, and manufactured in an engineered gradient structure. The
Z-Line 500 AB & 300 AB achieve a MERV 8 rating when tested in accordance with the ANSI/ASHRAE
52.2 Test Standard. Pre-applied gaskets on the assembled filters helps prevent
air bypass. Each filter is sealed in plastic to avoid contamination before
use.