18x25x1, Purolator Hi-E 40 Extended Surface Pleated Air Filter, Mechanical MERV 8, (6 Pack)

Capturesairborne particles and allergens between 3-10 microns in size. , Providessavings on energy bill, Reduced exposure to airborne allergens, toxins, andirritants and diminishes the growth of mold and mildew. Improvedsanitary conditions set by OSHA standards - Chemical / biologicalcontamination is controlled (5) Strength and Rigidity: Hi-E 40 filters willnot rack, warp or bend under normal handling or operating conditions. Thetwo-piece frame construction creates a double-wall thickness around the outeredge. Combined with an integral die cut cross members provide and galvanized steel pleat support creates rust resistance and rigid high quality filter. WaterRepellent Adhesive hold together even when wet. No delaminating, no excessivebuckling, no collapsing. The MERV8 media has a Polyvinyl Acetate (PVA) adhesive that is not affected by moldor microbial growth. In order to keep your air clean in your home orbusiness, it is important to install replacements every 60 to 90.