4PK Honeywell HRF-R2 Air Purifier Filters. Filters fit models HPA-094 (HAP094), HPA-100 (HPA100), HPA-104 HPA104), HPA-200 * (HPA200), HPA-204 (HPA204), HPA-300 (HPA300). Compare to Part # HRF-R2. Dimensions: 10-1/4 L x 6-1/2 W x 1-5/8 D. Absolutely Essential for Allergy Sufferers! This is a generic product designed and engineered in the United States by Crucial Air. This is not a Honeywell OEM product and is not covered under any Honeywell manufacturer''s warranty. Please check your manufacturers warranty with regard to the use of non-OEM parts. Crucial Air provides no warranty or guarantee with regard to the product or its compatibility with your Honeywell product. Any use of Crucial Air non-OEM products in your Honeywell product is done at your own risk. The Honeywell brand names and logos are the registered trademarks of their respective owners. Any use of the Honeywell brand name or model designation for this product is made solely for purposes of demonstrating compatibility.