The 3414 is the correct replacement for these models:
The 2-Pack Toastmaster 3414 Humidifier Filter Replacement is compatible to the genuine 2-Pack Toastmaster Humidifier filter. You may find this toastmaster humidifier wick filter also referred to as the T10, 999010, 999098,T-10, 272W, and 272-W . These wick filters will help prevent your humidifier from the growth of calcium, lime and other hard water minerals.
2-Pack Toastmaster Humidifier Filter Specifications:
The Toastmaster Humidifier Filter replacement works with your Toastmaster humidifier to prevent contaminants from being released into your air. This wick filter draws air through the wet filter allowing clean, humidified air to be released into your home. It is recommended that you replace your Toastmaster Humidifier Wick Filter replacement every 3 months, or based upon usage.