Check the listing for details. EFP Humidifier Filter for Holmes HWF65 (3-Pack). Condition: New. Listed at 19.99 USD. EFP Product made to fit Holmes products Includes (1) Filter Fits Holmes HWF65, HWF-65 High output interwoven filter design traps and retains mineral deposits Metal reinforcement structure adds stability to the new, softer, and more absorbent paper filter. It also prevents 'slumping' or 'sagging' over time or when wet Natural and clean humidification - no white dust Approximate Measurements: 21-15/16" L x 7-5/8" W x 1" T Product Description- This part is a top quality, generic aftermarket replacement part. Fit and function are guaranteed for 30 days or your money back.- Any reference to brand or model numbers is intended for identification purposes only.- This product does not include any warranty from the manufacturer. Many replacement parts should be installed only by a professional.Be safe. If you are not qualified to install this item, you are more than welcome to return it.