Rheem PD540040 (2-Pack) - 17.5" x 21" x 5" Exact-Fit Filter for Air Cleaner AXHF-E17AM, MERV 8

• Nominal Filter Dimensions: 17.5x21x5
• Actual Filter Dimensions: 17-1/4" x 20-3/4" x 4-3/8"

Rheem Whole Home Exact Fit Media Air Cleaners were designed to maximize filtration, allowing your Rheem home comfort solution make the air in your home cleaner and more comfortable. Replace filters every 6-12 Months, or more often if the filter appears dirty to the point of blocking air flow through the heating/cooling equipment. With a MERV 8 filtration and 4" deep-pleat filters that perfectly fit the media cabinet maximize surface area and minimize filter changes. Reduces major pollutants, such as dust and pollen, from the air passing through your HVAC systems.