Durabasics 4 Pack of HPA300 Compatible Activated Charcoal Pre Filters, Replacements for Honeywell Filter A & HRF AP1, Precision Cut to Fit Air Purifiers

VALUE 4 PACK - 4 premium activated carbon prefilters compatible with Honeywell Filter A, HRF-AP1, & HRF AP1. Each pre filter measures 14.2" x 17.2" x 0.2" to provide a precise fit specifically with your HPA300 air purifier FILTER OUT MORE AIRBORNE IRRITANTS - Capture more dust, pollen, pet dander, allergens, smoke, smells, odors, and other particles by placing a pre-filter in front of your HEPA Type R filters DESIGNED FOR EASE AND EFFECTIVENESS - Pre-filters are pre-cut to specifically fit Honeywell air purifier model HPA 300. Material thickness has been tested to maximize your machine's filtering power without reducing air flow through your machine (based on in-house testing) MAXIMIZE YOUR HEPA FILTER'S LIFE - Extend the life of your HEPA filters while also saving by reducing the amount of dust and particles that reach your HEPA filters 100% BACK - Rest easy with our 100% hassle back If our pre-filters are not noticeably improving your air quality, we will your purchase. Your satisfaction is our first priority!, Weight: 0.65918216338 Pounds, Manufacturer: Durabasics