• Premium activated carbon pre filter compatible with Honeywell Type K HRF-K2
• It fits Honeywell air purifier model HFD120/140, HFD300 series, HFD310, HFD320, HFD280 and HFD230
• To deodorize unfavorable household odor and trap larger particles such as dust, lint, fibers and pet fur
• 4 filters included. Cuttable to fit the right size
• Measurement: 5.75" W x 20.5" L
• 100% customer satisfaction guaranteed. Suggest to replace every 3 months to maximize the purifier performance