This Honeywell manufactured replacement filter fits into a 16" x 25" x 4" air filter slot. Comes in money-saving 12-pack for lower product and shipping cost. Manufacturer recommends replacing filter at least once per year.

• No pleat spacers, combs, or end caps required.
• Filters quickly "pop" into position after removing from packaging.
• Compact, collapsible design allows for easy storage.