The Bryant 49BB680044 is the correct compatible replacement for the following humidifiers:
The Bryant 49BB680044 Humidifier Filter Replacement features honeycomb filtration that traps mineral pollutants found in your water and helps to keep them from entering your home living environment. With aluminum mesh media, this filter replaces part numbers 88NH0312BB07 and 88NH0312BA12. For optimum performance, be sure to change your Bryant humidifier filter every 6 months or more frequently if you experience hard water. The dimensions of this filter measures approximately 11" x 11 7/8" x 3".