| Model | Description | Part |
|---|
| WB2-17 | Lennox WB2-17, whole-house humidifier, whole house. | 35 |
| WB2-17A | Lennox WB2-17A, whole-house humidifier, whole house. | 35 |
| HUM12 | Lennox HUM12, whole-house humidifier, whole house. | 35 |
| HUM13 | Lennox HUM13, whole-house humidifier, whole house. | 35 |
| HUM14 | Lennox HUM14, whole-house humidifier, whole house. | 35 |
| HUM15 | Lennox HUM15, whole-house humidifier, whole house. | 35 |
| WP2-17 | Lennox WP2-17, whole-house humidifier, whole house. | 35 |
| WB17 | Lennox WB17, whole-house humidifier, whole house. | 35 |
| WP2-17A | Lennox WP2-17A, whole-house humidifier, whole house. | 35 |
| WB2-18 | Lennox WB2-18, whole-house humidifier, whole house. | 35 |
| WB-18 | Lennox WB-18, whole-house humidifier, whole house. | 35 |
| WB2-18A | Lennox WB2-18A, whole-house humidifier, whole house. | 35 |
| WP2-18 | Lennox WP2-18, whole-house humidifier, whole house. | 35 |
| WP2-18A | Lennox WP2-18A, whole-house humidifier, whole house. | 35 |
| WB2-18P | Lennox WB2-18P, whole-house humidifier, whole house. | 35 |
| WP2-18P | Lennox WP2-18P, whole-house humidifier, whole house. | 35 |
| CH33-2119 | Lennox CH33-2119, whole-house humidifier, whole house. | 35 |
| HCWB3-17 | Lennox HCWB3-17, whole-house humidifier, whole house. | X2660 |
| HCWB3-17A | Lennox HCWB3-17A, whole-house humidifier, whole house. | X2660 |
| HCWB2-17 | Lennox HCWB2-17, whole-house humidifier, whole house. | X2660 |
| HCWB2-17A | Lennox HCWB2-17A, whole-house humidifier, whole house. | X2660 |