Filter K Odor and Gas Reducing Pre-FilterHRF-K2 · US · OEMVerified for US models only.Official manufacturer / OEMHoneywellFilter K Odor and Gas Reducing Pre-Filter↗Aftermarket listingsFilter-MonsterHoneywell Filter K carbon pre-filter↗Aftermarket compatibility is stated by the seller or maker and is separate from Filter Fit evidence.Full part details →Open manufacturer source ↗Evidence A · HoneywellView evidence ↗