Totaline 324897-761. The Water Evaporator Pad is the heart of your humidifier. It is the component that generates the important humidity to keep you comfortable during the heating season. Fits Totaline humidifier models HUMBBSFP1016, HUMCCSFP1016, and P110-SFP1016A. Measures approximately 9 1/4" x 9 3/4" x 1 1/4".