Trane 8043RP Humidifier Canister is a replacement component designed for compatible Trane whole-home humidifier systems. It contains electrodes that heat water inside the canister, producing steam that is introduced into the HVAC system’s airflow to increase indoor humidity. Used with forced-air heating and air conditioning equipment, it helps maintain balanced humidity levels through... https://www.partshnc.com/8043rp-trane-humidifier-canister