Tier1 HWF65PDQ-U Comparable Holmes HWF65 Type C Replacement Humidifier Filter for Models HWF65 3 Pack DESIGNED TO FIT: Fits Holmes humidifiers requiring HWF65PDQ-U filter, models HWF65, HWF65CS, HM1888, HM1889, HM2059, HM3000, HM3800, HM3850, HM4000, HM1855, HM1865, HM1850, HM1851, HM1845, HM1840, HM1895, HM2060W, Sunbeam SCM1866, SCM1895, SCM1896, Bionaire BWF65. ACTUAL SIZE: 7-29/50 inches (height) x 10-1/2 inches (width) x 2 inch (depth) HIGH EFFICIENCY FILTRATION: Reduces pollutants from the water treated to inhibit the growth of mold, bacteria, algae, and fungus. FILTER LIFE: For optimum performance, replace every 2 months. 100% TIER1 NO WORRIES GUARANTEE: We stand behind the quality of filtration and overall performance of our Tier1 filters! Reduces static Eases cold and allergy symptoms Soothes sore throat and dry, irritated skin Creates a comfortable living environment Reduces chance of nose bleeds Alleviates snoring for better sleep RB-HL65 RB HL65 RBHL65 HMF1090 TIER1-HMF1090