Humidifier Filter for Holmes "C" HWF65PDQ-U (3-Pack) Aftermarket Product Sourced Exclusively by EFP - Exact Fit Parts Includes (3) Humidifier Filters as pictured Approximate Measurements: 21-15/16" L x 7-5/8" W x 1" T Replacement for Holmes HWF65, HWF-65, Type C, HC15, HC-15