Replacement Carbon Pre/Post Filters for Holmes Air Purifiers – Compatible with Part AOR31 Filter I- Dims: 4-1/4 x 9-1/2 x 1/4 – (6-Pack)

This 6-Pack of replacement Carbon Pre/Post filters are compatible with Holmes Air Purifiers Part AOR31 Filter I and models HAP2400, HAP242, HAP9240, HAP9242, HAP412 Series, HAP9412 Series, HAP9414 Series, HAP422 Series, HAP424 Series, HAP9424 Series, HAP9422 Series. Dimensions are 1-1/4 x 9-1/2 x 1/4. 6-Pack.