• Replacement Prefilter Quality care manufactured - made with higher standards for design, assembly, procurement and production Honeywell commercial-grade pre-filter Traps larger particles in your air to help improve overall indoor air quality Helps increase the efficiency of your Honeywell air cleaner Two pre-filters are needed for Honeywell 20 x 25 air cleaner cells Only one pre-filter is needed for the 20 x 12.5 air cleaner cells Only one pre-filter is needed for the 20 x 12-1/2 in air cleaner cells

The Honeywell 203372 electronic pre-filter is a genuine product from Honeywell commercial air products division. Honeywell commercial filters emphasize the higher standards for design, assembly, procurement and production. This Genuine Honeywell filter works especially well in the removal of larger particles in the surrounding air. This allows for a significant improvement to overall air quality by increasing the overall efficiency of your Honeywell air cleaner.