Product Description

Honeywell 203371 Prefilter. Replacement prefilter to fit certain Honeywell electronic air cleaners. Note that some models require 2 prefilters and they are sold singularly. Aluminum mesh prefilter is roughly 3/8 thick. 12.5 x 15.75. Measure your existing prefilter to verify this is the proper part number if you have an older model. This part was formerly known as part number 136388.