Availability: Sorry, this item has been DISCONTINUED.
Price: $29.95 $39.95
You Save: $10.00 (25% Off)

  • Model Number: 203370
  • Fits F300E1027, F300A2020 and F50F1032 air cleaner models (F50F, F300 Series).
  • 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 needed for Honeywell 20 x 20 air cleaner cells
  • Dimensions: 20 x 10 x 11/32 in.

The Honeywell 203370 Pre-Filter is a genuine product from Honeywell's Commercial Air Products Division. This prefilter fits the F300E1027, F300A2020 and F50F1032 air cleaners. Honeywell Commercial Filters emphasize the higher standards of design, assembly, procurement and production. This Genuine Honeywell Filter is designed for Honeywell Electronic Air Cleaners and 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.

Two 203370 pre-filters are needed in Honeywell 20 x 20 air cleaners.

Please note: this 203370 prefilter will NOT fit the F50A or F50E Series.

Product Details
Product Specs
Commercial Air Filters
Honeywell Prefilter For F50F and F300 Air Cleaners - 20 x 10 x 11/32 in. Video

If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.

We make it as easy as possible to ensure you get the lowest prices available:
  • Let us know what products & the quantities you are interested in.
  • Get a detailed quote from a dedicated sales rep.
  • Our warehouse ships directly to you.
  • You enjoy the savings & are now a preferred customer.
Send A Request Now
Direct From Warehouse Pricing bulk purchase, wholesale pricing
203370 customer reviews

Overall Rating

9 Reviews
9 customers recommend this product
Honeywell Prefilter For F50F and F300 Air Cleaners - 20 x 10 x 11/32 in. Reviews
George F
November 17, 2021
Verified Purchase

I broke the original, so I ordered replacements. They came quickly and fit perfectly!

Daniel Wilson
October 12, 2020
Verified Purchase
Pre filters

The worked fine. WAY overpriced for what they are.

Paul Vanover
June 22, 2020
Verified Purchase

Great and very sturdy

Kirk Parker
June 4, 2020
Verified Purchase
These looked better then my old ones

These factory parts look and work great. I gotta remember to throw then in the dishwasher to get them really clean.

January 7, 2020
Verified Purchase
Great product

Nice quality

Robert Olbrych
November 5, 2019
Verified Purchase
OEM Pre-filters

Perfect replacement for my electronic air cleaner. Filters arrived a week ahead of time. Thanks.

Bryan Worley
September 9, 2019
Verified Purchase
Great Replacement

Replacement Filters.

Allan Shindell
June 19, 2019
Verified Purchase

The company shipped the wrong size filter and promptly shipped me the correct filter and paid for shipping back of the incorrect filter. Very good customer service.

Lee Chau
November 1, 2018
Verified Purchase

Just what I needed at an affordable price.

0 $0.00