Honeywell 50049537-005 filter replacement for TrueDRY DR65 dehumidifier. Four pack, 9 inch x 11 inch x 1 inch. The capture of airborne pollutants is rated with a MERV-11 rating for minimum efficiency reporting value. Replace filter every 6 months. TrueDRY DR65 can remove up to 65 quarts of water per day to keep humidity levels at a healthy level.