The GeneralAire 7623 is the correct replacement drain pump assembly for the following humidifier models:
The GeneralAire 50-04 Drain Pump Assembly for DS-50 is a replacement drain pump assembly for the GeneralAire DS50 and DS50L Elite Steam Residential Humidifier models. The drain pump fits at the bottom of the humidifier and drains away water and reduces the current flow to acceptable levels. The 50-04 drain pump also reduces the mineral concentration within the humidifier in order to release clean, moist air. This is an OEM pump assembly and is very reliable.
GeneralAire 50-04 Drain Pump Assembly for DS-50 specifications: