HQRP 2-Pack Water Filter for Bryant #P110-3545; HUMBBLBP, HUMBALBP, HUMBBLFP, HUMBALFP Humidifiers Plus Coaster HQRP&reg; 2-Pack Water Filter for Humidifier plus HQRP&reg; Coaster; Compatible with Bryant #P110-3545 Replacement; HUMBBLBP2217, HUMBBLBP2317, HUMBBLBP2417, HUMBALBP2317, HUMBALBP2417, HUMBBLFP1218, HUMBBLFP1318, HUMBBLFP1418, HUMBALFP1318 Humidifiers Dimensions: 10"x13"x1 3/4"; For optimum performance, panel should be replaced annually 2 weeks DOA replacement warranty!