grn fil 3 + 4 pack hpa300 hepa filter replacement r compatible with honeywell air purifiers hpa300 hpa304 hpa3300 hpa5300 hpa8350 series, 3-pack with 4 carbon pre-filters, replaces hrf-r3 hrf-r2 hrf-r1 3 hepa + 4 a carbon filters is up for auction in Home & Kitchen. This item is in Good Condition. This auction has ended — similar items appear in live auctions regularly.