|Secure, online ordering, and to-your-door-delivery - it's a snap to order genuine Honeywell 18x30 return air filters.
Pleated for greater surface capacity, it provides a MERV 10 efficiency rating and 98% efficient filtration media captures particles as small as 0.3 microns! Low pressure drop reduces strain on equipment, provides a comfortable air flow, and maintains equipment efficiency longer than standard filters.
Sold by the 5-pack
Honeywell recommends replacing the filter every 12 months, or more often if the filter appears dirty to the point of blocking air flow through the heating/cooling equipment.
Note: Honeywell recommends allowing a depth of at least seven inches behind the grille to provide space for the deeper filter and airflow through the filter.