Compatible with Honeywell Air Purifier HPA 300 Filter R (3 Hepa & 6 Pre Filters)
We have a total of six (6) Honeywell HPA series air filter 3 of them HPA300, in use at office, lunchroom, and part / tool inspection room. These Blutoget filters are a 100% quality product, they are a full 1/4" thick.