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Honeywell 203370 Prefilter 10 x 20

SKU#: 203370
List Price: $39.62 Sale Price: $35.66
Product Description

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. 10 x 20. Measure your existing prefilter to verify this is the proper part number if you have an older model.

Note: This pre-filter is the same as the 203373, but without spring clips.


10 (inches)
20 (inches)
3/8 (inch)
1 (oz)

Product Reviews

Add your review of this product Global rating: 4.67 from 3 reviews
Jan 17, 2016
Honeywell 203370 Prefilter 10 x 20 by John J Looney (Everett WA US)

Just the item I needed after lengthy search!

Apr 25, 2012
Need New AirFilter by Michael Brwon (Puyallup WA US)

Theses pre-filters were exactly what I needed. After a brief search on the internet I found these filters and the price was right. My local dealer wanted to charge me $104 per filter and I said no way. When I told them that was way too much they tried to give me a song and dance. So had what I wanted for the right price. I ordered these filters as the original filters that came with my air filter system were causing the system to continually spark. So replacing the filters did the trick. Thanks!

Mar 26, 2012
203370 Prefilter 10 x 20 by Sylvia (Seattle wa US)

product is exactly as ordered. It was packaged and shipped safely. no problem ordering from here again.


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