Prefilter & Prefilter Care - BreatheSmart 45i & BreatheSmart FLEX Prefilter Replacements

BreatheSmart 45i/Flex Prefilter Replacements - BreatheSmart 45i/FLEX prefilters come in a 4-pack.

The BreatheSmart 45i/FLEX prefilter is a black felt-like material. These prefilters attach to your filter using Velcro-like strips for easy removal and replacement.